CVE-2026-58025 (GCVE-0-2026-58025)

Vulnerability from cvelistv5 – Published: 2026-07-01 15:23 – Updated: 2026-07-01 15:51
VLAI
Title
Remote Code Execution via Unsafe Deserialization in LogItem Import
Summary
Deserialization of untrusted data vulnerability in Wikimedia Foundation MediaWiki. This vulnerability is associated with program files includes/Import/WikiImporter.Php, includes/Import/WikiRevision.Php, includes/Logging/LogEntryBase.Php. This issue affects MediaWiki: from * before 1.46.0, 1.45.4, 1.44.6, 1.43.9.
Severity
5.9 (Medium)
CVSS:4.0/AV:N/AC:H/AT:N/PR:H/UI:N/VC:L/VI:H/VA:L/SC:L/SI:L/SA:L
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
Assigner
References
Impacted products
Vendor Product Version
Wikimedia Foundation MediaWiki Affected: * , < 1.46.0, 1.45.4, 1.44.6, 1.43.9 (semver)
Create a notification for this product.
Show details on NVD website
To clipboard 

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-58025",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-07-01T15:51:46.171460Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-07-01T15:51:56.096Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "MediaWiki",
          "programFiles": [
            "includes/Import/WikiImporter.php",
            "includes/Import/WikiRevision.php",
            "includes/Logging/LogEntryBase.php",
            "https://phabricator.wikimedia.org/T422244"
          ],
          "repo": "https://gerrit.wikimedia.org/g/mediawiki/core/+/refs/heads/master",
          "vendor": "Wikimedia Foundation",
          "versions": [
            {
              "lessThan": "1.46.0, 1.45.4, 1.44.6, 1.43.9",
              "status": "affected",
              "version": "*",
              "versionType": "semver"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "Deserialization of untrusted data vulnerability in Wikimedia Foundation MediaWiki.\u003cp\u003e This vulnerability is associated with program files includes/Import/WikiImporter.Php, includes/Import/WikiRevision.Php, includes/Logging/LogEntryBase.Php.\u003c/p\u003e\u003cp\u003eThis issue affects MediaWiki: from * before 1.46.0, 1.45.4, 1.44.6, 1.43.9.\u003c/p\u003e"
            }
          ],
          "value": "Deserialization of untrusted data vulnerability in Wikimedia Foundation MediaWiki.\n\n This vulnerability is associated with program files includes/Import/WikiImporter.Php, includes/Import/WikiRevision.Php, includes/Logging/LogEntryBase.Php.\n\n\n\nThis issue affects MediaWiki: from * before 1.46.0, 1.45.4, 1.44.6, 1.43.9."
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "Automatable": "NOT_DEFINED",
            "Recovery": "NOT_DEFINED",
            "Safety": "NOT_DEFINED",
            "attackComplexity": "HIGH",
            "attackRequirements": "NONE",
            "attackVector": "NETWORK",
            "baseScore": 5.9,
            "baseSeverity": "MEDIUM",
            "exploitMaturity": "NOT_DEFINED",
            "privilegesRequired": "HIGH",
            "providerUrgency": "NOT_DEFINED",
            "subAvailabilityImpact": "LOW",
            "subConfidentialityImpact": "LOW",
            "subIntegrityImpact": "LOW",
            "userInteraction": "NONE",
            "valueDensity": "NOT_DEFINED",
            "vectorString": "CVSS:4.0/AV:N/AC:H/AT:N/PR:H/UI:N/VC:L/VI:H/VA:L/SC:L/SI:L/SA:L",
            "version": "4.0",
            "vulnAvailabilityImpact": "LOW",
            "vulnConfidentialityImpact": "LOW",
            "vulnIntegrityImpact": "HIGH",
            "vulnerabilityResponseEffort": "NOT_DEFINED"
          },
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en",
              "value": "GENERAL"
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-502",
              "description": "CWE-502 Deserialization of untrusted data",
              "lang": "en",
              "type": "CWE"
            }
          ]
        },
        {
          "descriptions": [
            {
              "cweId": "CWE-94",
              "description": "CWE-94",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-07-01T15:23:29.787Z",
        "orgId": "c4f26cc8-17ff-4c99-b5e2-38fc1793eacc",
        "shortName": "wikimedia-foundation"
      },
      "references": [
        {
          "url": "https://phabricator.wikimedia.org/T422244"
        }
      ],
      "source": {
        "discovery": "UNKNOWN"
      },
      "title": "Remote Code Execution via Unsafe Deserialization in LogItem Import",
      "x_generator": {
        "engine": "Vulnogram 1.0.2"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "c4f26cc8-17ff-4c99-b5e2-38fc1793eacc",
    "assignerShortName": "wikimedia-foundation",
    "cveId": "CVE-2026-58025",
    "datePublished": "2026-07-01T15:23:29.787Z",
    "dateReserved": "2026-06-27T13:32:37.577Z",
    "dateUpdated": "2026-07-01T15:51:56.096Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2026-58025",
      "date": "2026-07-09",
      "epss": "0.00342",
      "percentile": "0.26233"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2026-58025\",\"sourceIdentifier\":\"c4f26cc8-17ff-4c99-b5e2-38fc1793eacc\",\"published\":\"2026-07-01T16:16:49.703\",\"lastModified\":\"2026-07-09T19:34:14.067\",\"vulnStatus\":\"Analyzed\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"Deserialization of untrusted data vulnerability in Wikimedia Foundation MediaWiki.\\n\\n This vulnerability is associated with program files includes/Import/WikiImporter.Php, includes/Import/WikiRevision.Php, includes/Logging/LogEntryBase.Php.\\n\\n\\n\\nThis issue affects MediaWiki: from * before 1.46.0, 1.45.4, 1.44.6, 1.43.9.\"}],\"affected\":[{\"source\":\"c4f26cc8-17ff-4c99-b5e2-38fc1793eacc\",\"affectedData\":[{\"vendor\":\"Wikimedia Foundation\",\"product\":\"MediaWiki\",\"defaultStatus\":\"unaffected\",\"programFiles\":[\"includes/Import/WikiImporter.php\",\"includes/Import/WikiRevision.php\",\"includes/Logging/LogEntryBase.php\",\"https://phabricator.wikimedia.org/T422244\"],\"repo\":\"https://gerrit.wikimedia.org/g/mediawiki/core/+/refs/heads/master\",\"versions\":[{\"version\":\"*\",\"lessThan\":\"1.46.0, 1.45.4, 1.44.6, 1.43.9\",\"versionType\":\"semver\",\"status\":\"affected\"}]}]}],\"metrics\":{\"cvssMetricV40\":[{\"source\":\"c4f26cc8-17ff-4c99-b5e2-38fc1793eacc\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"4.0\",\"vectorString\":\"CVSS:4.0/AV:N/AC:H/AT:N/PR:H/UI:N/VC:L/VI:H/VA:L/SC:L/SI:L/SA:L/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X\",\"baseScore\":5.9,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"HIGH\",\"attackRequirements\":\"NONE\",\"privilegesRequired\":\"HIGH\",\"userInteraction\":\"NONE\",\"vulnConfidentialityImpact\":\"LOW\",\"vulnIntegrityImpact\":\"HIGH\",\"vulnAvailabilityImpact\":\"LOW\",\"subConfidentialityImpact\":\"LOW\",\"subIntegrityImpact\":\"LOW\",\"subAvailabilityImpact\":\"LOW\",\"exploitMaturity\":\"NOT_DEFINED\",\"confidentialityRequirement\":\"NOT_DEFINED\",\"integrityRequirement\":\"NOT_DEFINED\",\"availabilityRequirement\":\"NOT_DEFINED\",\"modifiedAttackVector\":\"NOT_DEFINED\",\"modifiedAttackComplexity\":\"NOT_DEFINED\",\"modifiedAttackRequirements\":\"NOT_DEFINED\",\"modifiedPrivilegesRequired\":\"NOT_DEFINED\",\"modifiedUserInteraction\":\"NOT_DEFINED\",\"modifiedVulnConfidentialityImpact\":\"NOT_DEFINED\",\"modifiedVulnIntegrityImpact\":\"NOT_DEFINED\",\"modifiedVulnAvailabilityImpact\":\"NOT_DEFINED\",\"modifiedSubConfidentialityImpact\":\"NOT_DEFINED\",\"modifiedSubIntegrityImpact\":\"NOT_DEFINED\",\"modifiedSubAvailabilityImpact\":\"NOT_DEFINED\",\"Safety\":\"NOT_DEFINED\",\"Automatable\":\"NOT_DEFINED\",\"Recovery\":\"NOT_DEFINED\",\"valueDensity\":\"NOT_DEFINED\",\"vulnerabilityResponseEffort\":\"NOT_DEFINED\",\"providerUrgency\":\"NOT_DEFINED\"}}],\"cvssMetricV31\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H\",\"baseScore\":9.8,\"baseSeverity\":\"CRITICAL\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":3.9,\"impactScore\":5.9}],\"ssvcV203\":[{\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"ssvcData\":{\"timestamp\":\"2026-07-01T15:51:46.171460Z\",\"id\":\"CVE-2026-58025\",\"options\":[{\"exploitation\":\"none\"},{\"automatable\":\"no\"},{\"technicalImpact\":\"partial\"}],\"role\":\"CISA Coordinator\",\"version\":\"2.0.3\"}}]},\"weaknesses\":[{\"source\":\"c4f26cc8-17ff-4c99-b5e2-38fc1793eacc\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-94\"},{\"lang\":\"en\",\"value\":\"CWE-502\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:mediawiki:mediawiki:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"1.43.0\",\"versionEndExcluding\":\"1.43.9\",\"matchCriteriaId\":\"5BC82408-61E8-4F28-8AEC-438E159DC867\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:mediawiki:mediawiki:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"1.44.0\",\"versionEndExcluding\":\"1.44.6\",\"matchCriteriaId\":\"8F0FD7F7-0D82-4E68-91D8-0ADAE54CB8C5\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:mediawiki:mediawiki:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"1.45.0\",\"versionEndExcluding\":\"1.45.4\",\"matchCriteriaId\":\"439E39DA-8BB7-4AF7-9F42-E334A9B4AD3E\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:mediawiki:mediawiki:1.46.0:rc0:*:*:*:*:*:*\",\"matchCriteriaId\":\"D371958A-1F95-4C45-B556-B087A7274D4C\"}]}]}],\"references\":[{\"url\":\"https://phabricator.wikimedia.org/T422244\",\"source\":\"c4f26cc8-17ff-4c99-b5e2-38fc1793eacc\",\"tags\":[\"Permissions Required\"]}]}}",
    "vulnrichment": {
      "containers": "{\"adp\": [{\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2026-58025\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2026-07-01T15:51:46.171460Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2026-07-01T15:51:51.239Z\"}}], \"cna\": {\"title\": \"Remote Code Execution via Unsafe Deserialization in LogItem Import\", \"source\": {\"discovery\": \"UNKNOWN\"}, \"metrics\": [{\"format\": \"CVSS\", \"cvssV4_0\": {\"Safety\": \"NOT_DEFINED\", \"version\": \"4.0\", \"Recovery\": \"NOT_DEFINED\", \"baseScore\": 5.9, \"Automatable\": \"NOT_DEFINED\", \"attackVector\": \"NETWORK\", \"baseSeverity\": \"MEDIUM\", \"valueDensity\": \"NOT_DEFINED\", \"vectorString\": \"CVSS:4.0/AV:N/AC:H/AT:N/PR:H/UI:N/VC:L/VI:H/VA:L/SC:L/SI:L/SA:L\", \"exploitMaturity\": \"NOT_DEFINED\", \"providerUrgency\": \"NOT_DEFINED\", \"userInteraction\": \"NONE\", \"attackComplexity\": \"HIGH\", \"attackRequirements\": \"NONE\", \"privilegesRequired\": \"HIGH\", \"subIntegrityImpact\": \"LOW\", \"vulnIntegrityImpact\": \"HIGH\", \"subAvailabilityImpact\": \"LOW\", \"vulnAvailabilityImpact\": \"LOW\", \"subConfidentialityImpact\": \"LOW\", \"vulnConfidentialityImpact\": \"LOW\", \"vulnerabilityResponseEffort\": \"NOT_DEFINED\"}, \"scenarios\": [{\"lang\": \"en\", \"value\": \"GENERAL\"}]}], \"affected\": [{\"repo\": \"https://gerrit.wikimedia.org/g/mediawiki/core/+/refs/heads/master\", \"vendor\": \"Wikimedia Foundation\", \"product\": \"MediaWiki\", \"versions\": [{\"status\": \"affected\", \"version\": \"*\", \"lessThan\": \"1.46.0, 1.45.4, 1.44.6, 1.43.9\", \"versionType\": \"semver\"}], \"programFiles\": [\"includes/Import/WikiImporter.php\", \"includes/Import/WikiRevision.php\", \"includes/Logging/LogEntryBase.php\", \"https://phabricator.wikimedia.org/T422244\"], \"defaultStatus\": \"unaffected\"}], \"references\": [{\"url\": \"https://phabricator.wikimedia.org/T422244\"}], \"x_generator\": {\"engine\": \"Vulnogram 1.0.2\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"Deserialization of untrusted data vulnerability in Wikimedia Foundation MediaWiki.\\n\\n This vulnerability is associated with program files includes/Import/WikiImporter.Php, includes/Import/WikiRevision.Php, includes/Logging/LogEntryBase.Php.\\n\\n\\n\\nThis issue affects MediaWiki: from * before 1.46.0, 1.45.4, 1.44.6, 1.43.9.\", \"supportingMedia\": [{\"type\": \"text/html\", \"value\": \"Deserialization of untrusted data vulnerability in Wikimedia Foundation MediaWiki.\u003cp\u003e This vulnerability is associated with program files includes/Import/WikiImporter.Php, includes/Import/WikiRevision.Php, includes/Logging/LogEntryBase.Php.\u003c/p\u003e\u003cp\u003eThis issue affects MediaWiki: from * before 1.46.0, 1.45.4, 1.44.6, 1.43.9.\u003c/p\u003e\", \"base64\": false}]}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-502\", \"description\": \"CWE-502 Deserialization of untrusted data\"}]}, {\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-94\", \"description\": \"CWE-94\"}]}], \"providerMetadata\": {\"orgId\": \"c4f26cc8-17ff-4c99-b5e2-38fc1793eacc\", \"shortName\": \"wikimedia-foundation\", \"dateUpdated\": \"2026-07-01T15:23:29.787Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2026-58025\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-07-01T15:51:56.096Z\", \"dateReserved\": \"2026-06-27T13:32:37.577Z\", \"assignerOrgId\": \"c4f26cc8-17ff-4c99-b5e2-38fc1793eacc\", \"datePublished\": \"2026-07-01T15:23:29.787Z\", \"assignerShortName\": \"wikimedia-foundation\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}



Log in or create an account to share your comment.




Tags
Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

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.