Vulnerability-Lookup

CVE-2021-4252 (GCVE-0-2021-4252)

Vulnerability from cvelistv5 – Published: 2022-12-18 00:00 – Updated: 2025-04-15 12:59

Title

WP-Ban ban-options.php toggle_checkbox cross site scripting

Summary

A vulnerability, which was classified as problematic, has been found in WP-Ban. This issue affects the function toggle_checkbox of the file ban-options.php. The manipulation of the argument $_SERVER["HTTP_USER_AGENT"] leads to cross site scripting. The attack may be initiated remotely. The name of the patch is 13e0b1e922f3aaa3f8fcb1dd6d50200dd693fd76. It is recommended to apply a patch to fix this issue. The identifier VDB-216209 was assigned to this vulnerability.

Severity

3.5 (Low)


                        
                          CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2025-04-14 17:02 UTC

CWE

CWE-707 - Improper Neutralization -> CWE-74 Injection -> CWE-79 Cross Site Scripting

Assigner

VulDB mitre root

References

3 references

URL	Tags
https://github.com/lesterchan/wp-ban/pull/11
https://github.com/lesterchan/wp-ban/commit/13e0b…
https://vuldb.com/?id.216209

Impacted products

1 product

Vendor	Product	Version	CPE status
unspecified	WP-Ban	Affected: n/a	guessed

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-03T17:23:10.280Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://github.com/lesterchan/wp-ban/pull/11"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://github.com/lesterchan/wp-ban/commit/13e0b1e922f3aaa3f8fcb1dd6d50200dd693fd76"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://vuldb.com/?id.216209"
          }
        ],
        "title": "CVE Program Container"
      },
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2021-4252",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-04-14T17:02:13.725798Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2025-04-15T12:59:51.281Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "WP-Ban",
          "vendor": "unspecified",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "A vulnerability, which was classified as problematic, has been found in WP-Ban. This issue affects the function toggle_checkbox of the file ban-options.php. The manipulation of the argument $_SERVER[\"HTTP_USER_AGENT\"] leads to cross site scripting. The attack may be initiated remotely. The name of the patch is 13e0b1e922f3aaa3f8fcb1dd6d50200dd693fd76. It is recommended to apply a patch to fix this issue. The identifier VDB-216209 was assigned to this vulnerability."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 3.5,
            "baseSeverity": "LOW",
            "confidentialityImpact": "NONE",
            "integrityImpact": "LOW",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-707",
              "description": "CWE-707 Improper Neutralization -\u003e CWE-74 Injection -\u003e CWE-79 Cross Site Scripting",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2022-12-18T00:00:00.000Z",
        "orgId": "1af790b2-7ee1-4545-860a-a788eba489b5",
        "shortName": "VulDB"
      },
      "references": [
        {
          "url": "https://github.com/lesterchan/wp-ban/pull/11"
        },
        {
          "url": "https://github.com/lesterchan/wp-ban/commit/13e0b1e922f3aaa3f8fcb1dd6d50200dd693fd76"
        },
        {
          "url": "https://vuldb.com/?id.216209"
        }
      ],
      "title": "WP-Ban ban-options.php toggle_checkbox cross site scripting",
      "x_generator": "vuldb.com"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "1af790b2-7ee1-4545-860a-a788eba489b5",
    "assignerShortName": "VulDB",
    "cveId": "CVE-2021-4252",
    "datePublished": "2022-12-18T00:00:00.000Z",
    "dateReserved": "2022-12-18T00:00:00.000Z",
    "dateUpdated": "2025-04-15T12:59:51.281Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2021-4252",
      "date": "2026-09-15",
      "epss": "0.00458",
      "percentile": "0.38581"
    },
    "fkie_nvd": {
      "configurations": "[{\"nodes\": [{\"operator\": \"OR\", \"negate\": false, \"cpeMatch\": [{\"vulnerable\": true, \"criteria\": \"cpe:2.3:a:wp-ban_project:wp-ban:*:*:*:*:*:wordpress:*:*\", \"versionEndExcluding\": \"2021-11-24\", \"matchCriteriaId\": \"F064FEA7-220B-4644-91B7-4827ABFAF247\"}]}]}]",
      "descriptions": "[{\"lang\": \"en\", \"value\": \"A vulnerability, which was classified as problematic, has been found in WP-Ban. This issue affects the function toggle_checkbox of the file ban-options.php. The manipulation of the argument $_SERVER[\\\"HTTP_USER_AGENT\\\"] leads to cross site scripting. The attack may be initiated remotely. The name of the patch is 13e0b1e922f3aaa3f8fcb1dd6d50200dd693fd76. It is recommended to apply a patch to fix this issue. The identifier VDB-216209 was assigned to this vulnerability.\"}, {\"lang\": \"es\", \"value\": \"Una vulnerabilidad fue encontrada en WP-Ban y clasificada como problem\\u00e1tica. Este problema afecta la funci\\u00f3n toggle_checkbox del archivo ban-options.php. La manipulaci\\u00f3n del argumento $_SERVER[\\\"HTTP_USER_AGENT\\\"] conduce a Cross-Site Scripting. El ataque puede iniciarse de forma remota. El nombre del parche es 13e0b1e922f3aaa3f8fcb1dd6d50200dd693fd76. Se recomienda aplicar un parche para solucionar este problema. A esta vulnerabilidad se le asign\\u00f3 el identificador VDB-216209.\"}]",
      "id": "CVE-2021-4252",
      "lastModified": "2024-11-21T06:37:14.467",
      "metrics": "{\"cvssMetricV31\": [{\"source\": \"cna@vuldb.com\", \"type\": \"Secondary\", \"cvssData\": {\"version\": \"3.1\", \"vectorString\": \"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N\", \"baseScore\": 3.5, \"baseSeverity\": \"LOW\", \"attackVector\": \"NETWORK\", \"attackComplexity\": \"LOW\", \"privilegesRequired\": \"LOW\", \"userInteraction\": \"REQUIRED\", \"scope\": \"UNCHANGED\", \"confidentialityImpact\": \"NONE\", \"integrityImpact\": \"LOW\", \"availabilityImpact\": \"NONE\"}, \"exploitabilityScore\": 2.1, \"impactScore\": 1.4}, {\"source\": \"nvd@nist.gov\", \"type\": \"Primary\", \"cvssData\": {\"version\": \"3.1\", \"vectorString\": \"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N\", \"baseScore\": 6.1, \"baseSeverity\": \"MEDIUM\", \"attackVector\": \"NETWORK\", \"attackComplexity\": \"LOW\", \"privilegesRequired\": \"NONE\", \"userInteraction\": \"REQUIRED\", \"scope\": \"CHANGED\", \"confidentialityImpact\": \"LOW\", \"integrityImpact\": \"LOW\", \"availabilityImpact\": \"NONE\"}, \"exploitabilityScore\": 2.8, \"impactScore\": 2.7}]}",
      "published": "2022-12-18T22:15:10.243",
      "references": "[{\"url\": \"https://github.com/lesterchan/wp-ban/commit/13e0b1e922f3aaa3f8fcb1dd6d50200dd693fd76\", \"source\": \"cna@vuldb.com\", \"tags\": [\"Patch\", \"Third Party Advisory\"]}, {\"url\": \"https://github.com/lesterchan/wp-ban/pull/11\", \"source\": \"cna@vuldb.com\", \"tags\": [\"Patch\", \"Third Party Advisory\"]}, {\"url\": \"https://vuldb.com/?id.216209\", \"source\": \"cna@vuldb.com\", \"tags\": [\"Third Party Advisory\"]}, {\"url\": \"https://github.com/lesterchan/wp-ban/commit/13e0b1e922f3aaa3f8fcb1dd6d50200dd693fd76\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Patch\", \"Third Party Advisory\"]}, {\"url\": \"https://github.com/lesterchan/wp-ban/pull/11\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Patch\", \"Third Party Advisory\"]}, {\"url\": \"https://vuldb.com/?id.216209\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Third Party Advisory\"]}]",
      "sourceIdentifier": "cna@vuldb.com",
      "vulnStatus": "Modified",
      "weaknesses": "[{\"source\": \"cna@vuldb.com\", \"type\": \"Primary\", \"description\": [{\"lang\": \"en\", \"value\": \"CWE-707\"}]}]"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2021-4252\",\"sourceIdentifier\":\"cna@vuldb.com\",\"published\":\"2022-12-18T22:15:10.243\",\"lastModified\":\"2026-06-17T04:19:21.427\",\"vulnStatus\":\"Modified\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"A vulnerability, which was classified as problematic, has been found in WP-Ban. This issue affects the function toggle_checkbox of the file ban-options.php. The manipulation of the argument $_SERVER[\\\"HTTP_USER_AGENT\\\"] leads to cross site scripting. The attack may be initiated remotely. The name of the patch is 13e0b1e922f3aaa3f8fcb1dd6d50200dd693fd76. It is recommended to apply a patch to fix this issue. The identifier VDB-216209 was assigned to this vulnerability.\"},{\"lang\":\"es\",\"value\":\"Una vulnerabilidad fue encontrada en WP-Ban y clasificada como problem\u00e1tica. Este problema afecta la funci\u00f3n toggle_checkbox del archivo ban-options.php. La manipulaci\u00f3n del argumento $_SERVER[\\\"HTTP_USER_AGENT\\\"] conduce a Cross-Site Scripting. El ataque puede iniciarse de forma remota. El nombre del parche es 13e0b1e922f3aaa3f8fcb1dd6d50200dd693fd76. Se recomienda aplicar un parche para solucionar este problema. A esta vulnerabilidad se le asign\u00f3 el identificador VDB-216209.\"}],\"affected\":[{\"source\":\"cna@vuldb.com\",\"affectedData\":[{\"vendor\":\"unspecified\",\"product\":\"WP-Ban\",\"versions\":[{\"version\":\"n/a\",\"status\":\"affected\"}]}]}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"cna@vuldb.com\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N\",\"baseScore\":3.5,\"baseSeverity\":\"LOW\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"REQUIRED\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"LOW\",\"availabilityImpact\":\"NONE\"},\"exploitabilityScore\":2.1,\"impactScore\":1.4},{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N\",\"baseScore\":6.1,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"REQUIRED\",\"scope\":\"CHANGED\",\"confidentialityImpact\":\"LOW\",\"integrityImpact\":\"LOW\",\"availabilityImpact\":\"NONE\"},\"exploitabilityScore\":2.8,\"impactScore\":2.7}],\"ssvcV203\":[{\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"ssvcData\":{\"timestamp\":\"2025-04-14T17:02:13.725798Z\",\"id\":\"CVE-2021-4252\",\"options\":[{\"exploitation\":\"none\"},{\"automatable\":\"no\"},{\"technicalImpact\":\"partial\"}],\"role\":\"CISA Coordinator\",\"version\":\"2.0.3\"}}]},\"weaknesses\":[{\"source\":\"cna@vuldb.com\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-707\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:wp-ban_project:wp-ban:*:*:*:*:*:wordpress:*:*\",\"versionEndExcluding\":\"2021-11-24\",\"matchCriteriaId\":\"F064FEA7-220B-4644-91B7-4827ABFAF247\"}]}]}],\"references\":[{\"url\":\"https://github.com/lesterchan/wp-ban/commit/13e0b1e922f3aaa3f8fcb1dd6d50200dd693fd76\",\"source\":\"cna@vuldb.com\",\"tags\":[\"Patch\",\"Third Party Advisory\"]},{\"url\":\"https://github.com/lesterchan/wp-ban/pull/11\",\"source\":\"cna@vuldb.com\",\"tags\":[\"Patch\",\"Third Party Advisory\"]},{\"url\":\"https://vuldb.com/?id.216209\",\"source\":\"cna@vuldb.com\",\"tags\":[\"Third Party Advisory\"]},{\"url\":\"https://github.com/lesterchan/wp-ban/commit/13e0b1e922f3aaa3f8fcb1dd6d50200dd693fd76\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\",\"Third Party Advisory\"]},{\"url\":\"https://github.com/lesterchan/wp-ban/pull/11\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\",\"Third Party Advisory\"]},{\"url\":\"https://vuldb.com/?id.216209\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Third Party Advisory\"]}]}}",
    "redhat_vex": {
      "current_release_date": "2025-05-29T05:04:34+00:00",
      "cve": "CVE-2021-4252",
      "id": "CVE-2021-4252",
      "initial_release_date": "2021-01-01T00:00:00+00:00",
      "product_status:known_not_affected": "1",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "WP-Ban ban-options.php toggle_checkbox cross site scripting",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2021/cve-2021-4252.json",
      "version": "3"
    },
    "vulnrichment": {
      "containers": "{\"cna\": {\"title\": \"WP-Ban ban-options.php toggle_checkbox cross site scripting\", \"providerMetadata\": {\"orgId\": \"1af790b2-7ee1-4545-860a-a788eba489b5\", \"shortName\": \"VulDB\", \"dateUpdated\": \"2022-12-18T00:00:00.000Z\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"A vulnerability, which was classified as problematic, has been found in WP-Ban. This issue affects the function toggle_checkbox of the file ban-options.php. The manipulation of the argument $_SERVER[\\\"HTTP_USER_AGENT\\\"] leads to cross site scripting. The attack may be initiated remotely. The name of the patch is 13e0b1e922f3aaa3f8fcb1dd6d50200dd693fd76. It is recommended to apply a patch to fix this issue. The identifier VDB-216209 was assigned to this vulnerability.\"}], \"affected\": [{\"vendor\": \"unspecified\", \"product\": \"WP-Ban\", \"versions\": [{\"version\": \"n/a\", \"status\": \"affected\"}]}], \"references\": [{\"url\": \"https://github.com/lesterchan/wp-ban/pull/11\"}, {\"url\": \"https://github.com/lesterchan/wp-ban/commit/13e0b1e922f3aaa3f8fcb1dd6d50200dd693fd76\"}, {\"url\": \"https://vuldb.com/?id.216209\"}], \"metrics\": [{\"cvssV3_1\": {\"version\": \"3.1\", \"vectorString\": \"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N\", \"attackVector\": \"NETWORK\", \"attackComplexity\": \"LOW\", \"privilegesRequired\": \"LOW\", \"userInteraction\": \"REQUIRED\", \"scope\": \"UNCHANGED\", \"confidentialityImpact\": \"NONE\", \"integrityImpact\": \"LOW\", \"availabilityImpact\": \"NONE\", \"baseScore\": 3.5, \"baseSeverity\": \"LOW\"}}], \"problemTypes\": [{\"descriptions\": [{\"type\": \"CWE\", \"lang\": \"en\", \"description\": \"CWE-707 Improper Neutralization -\u003e CWE-74 Injection -\u003e CWE-79 Cross Site Scripting\", \"cweId\": \"CWE-707\"}]}], \"x_generator\": \"vuldb.com\"}, \"adp\": [{\"providerMetadata\": {\"orgId\": \"af854a3a-2127-422b-91ae-364da2661108\", \"shortName\": \"CVE\", \"dateUpdated\": \"2024-08-03T17:23:10.280Z\"}, \"title\": \"CVE Program Container\", \"references\": [{\"url\": \"https://github.com/lesterchan/wp-ban/pull/11\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://github.com/lesterchan/wp-ban/commit/13e0b1e922f3aaa3f8fcb1dd6d50200dd693fd76\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://vuldb.com/?id.216209\", \"tags\": [\"x_transferred\"]}]}, {\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2021-4252\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2025-04-14T17:02:13.725798Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2025-04-14T17:02:17.390Z\"}}]}",
      "cveMetadata": "{\"state\": \"PUBLISHED\", \"cveId\": \"CVE-2021-4252\", \"assignerOrgId\": \"1af790b2-7ee1-4545-860a-a788eba489b5\", \"assignerShortName\": \"VulDB\", \"dateUpdated\": \"2025-04-15T12:59:51.281Z\", \"dateReserved\": \"2022-12-18T00:00:00.000Z\", \"datePublished\": \"2022-12-18T00:00:00.000Z\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}

FKIE_CVE-2021-4252

Vulnerability from fkie_nvd - Published: 2022-12-18 22:15 - Updated: 2026-06-17 04:19

Severity

3.5 (Low) - CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N
6.1 (Medium) - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Summary

References

URL	Tags
cna@vuldb.com	https://github.com/lesterchan/wp-ban/commit/13e0b1e922f3aaa3f8fcb1dd6d50200dd693fd76	Patch, Third Party Advisory
cna@vuldb.com	https://github.com/lesterchan/wp-ban/pull/11	Patch, Third Party Advisory
cna@vuldb.com	https://vuldb.com/?id.216209	Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108	https://github.com/lesterchan/wp-ban/commit/13e0b1e922f3aaa3f8fcb1dd6d50200dd693fd76	Patch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108	https://github.com/lesterchan/wp-ban/pull/11	Patch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108	https://vuldb.com/?id.216209	Third Party Advisory

Impacted products

	Vendor	Product	Version
	wp-ban_project	wp-ban	*

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "WP-Ban",
          "vendor": "unspecified",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "source": "cna@vuldb.com"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:wp-ban_project:wp-ban:*:*:*:*:*:wordpress:*:*",
              "matchCriteriaId": "F064FEA7-220B-4644-91B7-4827ABFAF247",
              "versionEndExcluding": "2021-11-24",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "A vulnerability, which was classified as problematic, has been found in WP-Ban. This issue affects the function toggle_checkbox of the file ban-options.php. The manipulation of the argument $_SERVER[\"HTTP_USER_AGENT\"] leads to cross site scripting. The attack may be initiated remotely. The name of the patch is 13e0b1e922f3aaa3f8fcb1dd6d50200dd693fd76. It is recommended to apply a patch to fix this issue. The identifier VDB-216209 was assigned to this vulnerability."
    },
    {
      "lang": "es",
      "value": "Una vulnerabilidad fue encontrada en WP-Ban y clasificada como problem\u00e1tica. Este problema afecta la funci\u00f3n toggle_checkbox del archivo ban-options.php. La manipulaci\u00f3n del argumento $_SERVER[\"HTTP_USER_AGENT\"] conduce a Cross-Site Scripting. El ataque puede iniciarse de forma remota. El nombre del parche es 13e0b1e922f3aaa3f8fcb1dd6d50200dd693fd76. Se recomienda aplicar un parche para solucionar este problema. A esta vulnerabilidad se le asign\u00f3 el identificador VDB-216209."
    }
  ],
  "id": "CVE-2021-4252",
  "lastModified": "2026-06-17T04:19:21.427",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 3.5,
          "baseSeverity": "LOW",
          "confidentialityImpact": "NONE",
          "integrityImpact": "LOW",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "REQUIRED",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 2.1,
        "impactScore": 1.4,
        "source": "cna@vuldb.com",
        "type": "Secondary"
      },
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 6.1,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "LOW",
          "integrityImpact": "LOW",
          "privilegesRequired": "NONE",
          "scope": "CHANGED",
          "userInteraction": "REQUIRED",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 2.7,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2021-4252",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2025-04-14T17:02:13.725798Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2022-12-18T22:15:10.243",
  "references": [
    {
      "source": "cna@vuldb.com",
      "tags": [
        "Patch",
        "Third Party Advisory"
      ],
      "url": "https://github.com/lesterchan/wp-ban/commit/13e0b1e922f3aaa3f8fcb1dd6d50200dd693fd76"
    },
    {
      "source": "cna@vuldb.com",
      "tags": [
        "Patch",
        "Third Party Advisory"
      ],
      "url": "https://github.com/lesterchan/wp-ban/pull/11"
    },
    {
      "source": "cna@vuldb.com",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "https://vuldb.com/?id.216209"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Patch",
        "Third Party Advisory"
      ],
      "url": "https://github.com/lesterchan/wp-ban/commit/13e0b1e922f3aaa3f8fcb1dd6d50200dd693fd76"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Patch",
        "Third Party Advisory"
      ],
      "url": "https://github.com/lesterchan/wp-ban/pull/11"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "https://vuldb.com/?id.216209"
    }
  ],
  "sourceIdentifier": "cna@vuldb.com",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-707"
        }
      ],
      "source": "cna@vuldb.com",
      "type": "Secondary"
    }
  ]
}

GHSA-Q9F9-65VF-F4JF

Vulnerability from github – Published: 2022-12-19 00:30 – Updated: 2022-12-22 21:30

Details

Severity

6.1 (Medium)


                  
                    CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2021-4252"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-79"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2022-12-18T22:15:00Z",
    "severity": "MODERATE"
  },
  "details": "A vulnerability, which was classified as problematic, has been found in WP-Ban. This issue affects the function toggle_checkbox of the file ban-options.php. The manipulation of the argument $_SERVER[\"HTTP_USER_AGENT\"] leads to cross site scripting. The attack may be initiated remotely. The name of the patch is 13e0b1e922f3aaa3f8fcb1dd6d50200dd693fd76. It is recommended to apply a patch to fix this issue. The identifier VDB-216209 was assigned to this vulnerability.",
  "id": "GHSA-q9f9-65vf-f4jf",
  "modified": "2022-12-22T21:30:31Z",
  "published": "2022-12-19T00:30:23Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-4252"
    },
    {
      "type": "WEB",
      "url": "https://github.com/lesterchan/wp-ban/pull/11"
    },
    {
      "type": "WEB",
      "url": "https://github.com/lesterchan/wp-ban/commit/13e0b1e922f3aaa3f8fcb1dd6d50200dd693fd76"
    },
    {
      "type": "WEB",
      "url": "https://vuldb.com/?id.216209"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N",
      "type": "CVSS_V3"
    }
  ]
}

GSD-2021-4252

Vulnerability from gsd - Updated: 2023-12-13 01:23

Details

Aliases

CVE-2021-4252

Aliases

CVE-2021-4252

JSON

To clipboard

{
  "GSD": {
    "alias": "CVE-2021-4252",
    "id": "GSD-2021-4252"
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "aliases": [
        "CVE-2021-4252"
      ],
      "details": "A vulnerability, which was classified as problematic, has been found in WP-Ban. This issue affects the function toggle_checkbox of the file ban-options.php. The manipulation of the argument $_SERVER[\"HTTP_USER_AGENT\"] leads to cross site scripting. The attack may be initiated remotely. The name of the patch is 13e0b1e922f3aaa3f8fcb1dd6d50200dd693fd76. It is recommended to apply a patch to fix this issue. The identifier VDB-216209 was assigned to this vulnerability.",
      "id": "GSD-2021-4252",
      "modified": "2023-12-13T01:23:11.564020Z",
      "schema_version": "1.4.0"
    }
  },
  "namespaces": {
    "cve.org": {
      "CVE_data_meta": {
        "ASSIGNER": "cna@vuldb.com",
        "ID": "CVE-2021-4252",
        "REQUESTER": "cna@vuldb.com",
        "STATE": "PUBLIC",
        "TITLE": "WP-Ban ban-options.php toggle_checkbox cross site scripting"
      },
      "affects": {
        "vendor": {
          "vendor_data": [
            {
              "product": {
                "product_data": [
                  {
                    "product_name": "WP-Ban",
                    "version": {
                      "version_data": [
                        {
                          "version_value": "n/a"
                        }
                      ]
                    }
                  }
                ]
              },
              "vendor_name": ""
            }
          ]
        }
      },
      "data_format": "MITRE",
      "data_type": "CVE",
      "data_version": "4.0",
      "description": {
        "description_data": [
          {
            "lang": "eng",
            "value": "A vulnerability, which was classified as problematic, has been found in WP-Ban. This issue affects the function toggle_checkbox of the file ban-options.php. The manipulation of the argument $_SERVER[\"HTTP_USER_AGENT\"] leads to cross site scripting. The attack may be initiated remotely. The name of the patch is 13e0b1e922f3aaa3f8fcb1dd6d50200dd693fd76. It is recommended to apply a patch to fix this issue. The identifier VDB-216209 was assigned to this vulnerability."
          }
        ]
      },
      "generator": "vuldb.com",
      "impact": {
        "cvss": {
          "baseScore": "3.5",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N",
          "version": "3.1"
        }
      },
      "problemtype": {
        "problemtype_data": [
          {
            "description": [
              {
                "lang": "eng",
                "value": "CWE-707 Improper Neutralization -\u003e CWE-74 Injection -\u003e CWE-79 Cross Site Scripting"
              }
            ]
          }
        ]
      },
      "references": {
        "reference_data": [
          {
            "name": "https://github.com/lesterchan/wp-ban/pull/11",
            "refsource": "MISC",
            "url": "https://github.com/lesterchan/wp-ban/pull/11"
          },
          {
            "name": "https://github.com/lesterchan/wp-ban/commit/13e0b1e922f3aaa3f8fcb1dd6d50200dd693fd76",
            "refsource": "MISC",
            "url": "https://github.com/lesterchan/wp-ban/commit/13e0b1e922f3aaa3f8fcb1dd6d50200dd693fd76"
          },
          {
            "name": "https://vuldb.com/?id.216209",
            "refsource": "MISC",
            "url": "https://vuldb.com/?id.216209"
          }
        ]
      }
    },
    "nvd.nist.gov": {
      "configurations": {
        "CVE_data_version": "4.0",
        "nodes": [
          {
            "children": [],
            "cpe_match": [
              {
                "cpe23Uri": "cpe:2.3:a:wp-ban_project:wp-ban:*:*:*:*:*:wordpress:*:*",
                "cpe_name": [],
                "versionEndExcluding": "2021-11-24",
                "vulnerable": true
              }
            ],
            "operator": "OR"
          }
        ]
      },
      "cve": {
        "CVE_data_meta": {
          "ASSIGNER": "cna@vuldb.com",
          "ID": "CVE-2021-4252"
        },
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "en",
              "value": "A vulnerability, which was classified as problematic, has been found in WP-Ban. This issue affects the function toggle_checkbox of the file ban-options.php. The manipulation of the argument $_SERVER[\"HTTP_USER_AGENT\"] leads to cross site scripting. The attack may be initiated remotely. The name of the patch is 13e0b1e922f3aaa3f8fcb1dd6d50200dd693fd76. It is recommended to apply a patch to fix this issue. The identifier VDB-216209 was assigned to this vulnerability."
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "en",
                  "value": "CWE-79"
                },
                {
                  "lang": "en",
                  "value": "CWE-74"
                },
                {
                  "lang": "en",
                  "value": "CWE-707"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "N/A",
              "refsource": "N/A",
              "tags": [
                "Third Party Advisory"
              ],
              "url": "https://vuldb.com/?id.216209"
            },
            {
              "name": "N/A",
              "refsource": "N/A",
              "tags": [
                "Patch",
                "Third Party Advisory"
              ],
              "url": "https://github.com/lesterchan/wp-ban/commit/13e0b1e922f3aaa3f8fcb1dd6d50200dd693fd76"
            },
            {
              "name": "N/A",
              "refsource": "N/A",
              "tags": [
                "Patch",
                "Third Party Advisory"
              ],
              "url": "https://github.com/lesterchan/wp-ban/pull/11"
            }
          ]
        }
      },
      "impact": {
        "baseMetricV3": {
          "cvssV3": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 6.1,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "LOW",
            "integrityImpact": "LOW",
            "privilegesRequired": "NONE",
            "scope": "CHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N",
            "version": "3.1"
          },
          "exploitabilityScore": 2.8,
          "impactScore": 2.7
        }
      },
      "lastModifiedDate": "2022-12-22T19:26Z",
      "publishedDate": "2022-12-18T22:15Z"
    }
  }
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

Action not permitted

CVE-2021-4252 (GCVE-0-2021-4252)

FKIE_CVE-2021-4252

GHSA-Q9F9-65VF-F4JF

GSD-2021-4252

Tags

Sightings

Nomenclature

Related by attack behaviour