CVE-2026-55808 (GCVE-0-2026-55808)

Vulnerability from cvelistv5 – Published: 2026-07-10 21:46 – Updated: 2026-07-10 21:46
VLAI
Title
Drupal core - Moderately critical - Improper validation - SA-CORE-2026-009
Summary
Improper Neutralization of Input During Web Page Generation ("Cross-site Scripting") vulnerability in Drupal Drupal core allows Cross-Site Scripting (XSS). This issue affects Drupal core versions: from 0.0.0 to 10.5.12, from 10.6.0 to 10.6.11, from 11.2.0 to 11.2.14, from 11.3.0 to 11.3.12, from 0.0.0 to 11.0.*, from 0.0.0 to 11.1.*.
Severity
No CVSS data available.
CWE
  • CWE-79 - Improper Neutralization of Input During Web Page Generation ("Cross-site Scripting")
Assigner
References
Impacted products
Vendor Product Version
Drupal Drupal core Affected: 0.0.0 , < 10.5.12 (semver)
Affected: 10.6.0 , < 10.6.11 (semver)
Affected: 11.2.0 , < 11.2.14 (semver)
Affected: 11.3.0 , < 11.3.12 (semver)
Affected: 0.0.0 , < 11.0.* (semver)
Affected: 0.0.0 , < 11.1.* (semver)
Create a notification for this product.
Date Public
2026-06-17 18:58
Credits
cantina_security Björn Brala (bbrala) Kim Pepper (kim.pepper) Lee Rowlands (larowlan) Damien McKenna (damienmckenna) Greg Knaddison (greggles) Lee Rowlands (larowlan) Dave Long (longwave) Juraj Nemec (poker10) Jess (xjm)
Show details on NVD website
To clipboard 

{
  "containers": {
    "cna": {
      "affected": [
        {
          "collectionURL": "https://www.drupal.org/project/drupal",
          "product": "Drupal core",
          "repo": "https://git.drupalcode.org/project/drupal",
          "vendor": "Drupal",
          "versions": [
            {
              "lessThan": "10.5.12",
              "status": "affected",
              "version": "0.0.0",
              "versionType": "semver"
            },
            {
              "lessThan": "10.6.11",
              "status": "affected",
              "version": "10.6.0",
              "versionType": "semver"
            },
            {
              "lessThan": "11.2.14",
              "status": "affected",
              "version": "11.2.0",
              "versionType": "semver"
            },
            {
              "lessThan": "11.3.12",
              "status": "affected",
              "version": "11.3.0",
              "versionType": "semver"
            },
            {
              "lessThan": "11.0.*",
              "status": "affected",
              "version": "0.0.0",
              "versionType": "semver"
            },
            {
              "lessThan": "11.1.*",
              "status": "affected",
              "version": "0.0.0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "cantina_security"
        },
        {
          "lang": "en",
          "type": "remediation developer",
          "value": "Bj\u00c3\u00b6rn Brala (bbrala)"
        },
        {
          "lang": "en",
          "type": "remediation developer",
          "value": "Kim Pepper (kim.pepper)"
        },
        {
          "lang": "en",
          "type": "remediation developer",
          "value": "Lee Rowlands (larowlan)"
        },
        {
          "lang": "en",
          "type": "coordinator",
          "value": "Damien McKenna (damienmckenna)"
        },
        {
          "lang": "en",
          "type": "coordinator",
          "value": "Greg Knaddison (greggles)"
        },
        {
          "lang": "en",
          "type": "coordinator",
          "value": "Lee Rowlands (larowlan)"
        },
        {
          "lang": "en",
          "type": "coordinator",
          "value": "Dave Long (longwave)"
        },
        {
          "lang": "en",
          "type": "coordinator",
          "value": "Juraj Nemec (poker10)"
        },
        {
          "lang": "en",
          "type": "coordinator",
          "value": "Jess  (xjm)"
        }
      ],
      "datePublic": "2026-06-17T18:58:02.000Z",
      "descriptions": [
        {
          "lang": "en",
          "value": "Improper Neutralization of Input During Web Page Generation (\"Cross-site Scripting\") vulnerability in Drupal Drupal core allows Cross-Site Scripting (XSS). This issue affects Drupal core versions: from 0.0.0 to 10.5.12, from 10.6.0 to 10.6.11, from 11.2.0 to 11.2.14, from 11.3.0 to 11.3.12, from 0.0.0 to 11.0.*, from 0.0.0 to 11.1.*."
        }
      ],
      "impacts": [
        {
          "capecId": "CAPEC-63",
          "descriptions": [
            {
              "lang": "en",
              "value": "CAPEC-63 Cross-Site Scripting (XSS)"
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-79",
              "description": "CWE-79 Improper Neutralization of Input During Web Page Generation (\"Cross-site Scripting\")",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-07-10T21:46:43.600Z",
        "orgId": "2c85b837-eb8b-40ed-9d74-228c62987387",
        "shortName": "drupal"
      },
      "references": [
        {
          "url": "https://www.drupal.org/sa-core-2026-009"
        }
      ],
      "title": "Drupal core - Moderately critical - Improper validation - SA-CORE-2026-009"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "2c85b837-eb8b-40ed-9d74-228c62987387",
    "assignerShortName": "drupal",
    "cveId": "CVE-2026-55808",
    "datePublished": "2026-07-10T21:46:43.600Z",
    "dateReserved": "2026-06-17T14:59:52.673Z",
    "dateUpdated": "2026-07-10T21:46:43.600Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2026-55808\",\"sourceIdentifier\":\"mlhess@drupal.org\",\"published\":\"2026-07-10T22:16:43.667\",\"lastModified\":\"2026-07-10T22:16:43.667\",\"vulnStatus\":\"Received\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"Improper Neutralization of Input During Web Page Generation (\\\"Cross-site Scripting\\\") vulnerability in Drupal Drupal core allows Cross-Site Scripting (XSS). This issue affects Drupal core versions: from 0.0.0 to 10.5.12, from 10.6.0 to 10.6.11, from 11.2.0 to 11.2.14, from 11.3.0 to 11.3.12, from 0.0.0 to 11.0.*, from 0.0.0 to 11.1.*.\"}],\"affected\":[{\"source\":\"mlhess@drupal.org\",\"affectedData\":[{\"vendor\":\"Drupal\",\"product\":\"Drupal core\",\"collectionURL\":\"https://www.drupal.org/project/drupal\",\"repo\":\"https://git.drupalcode.org/project/drupal\",\"versions\":[{\"version\":\"0.0.0\",\"lessThan\":\"10.5.12\",\"versionType\":\"semver\",\"status\":\"affected\"},{\"version\":\"10.6.0\",\"lessThan\":\"10.6.11\",\"versionType\":\"semver\",\"status\":\"affected\"},{\"version\":\"11.2.0\",\"lessThan\":\"11.2.14\",\"versionType\":\"semver\",\"status\":\"affected\"},{\"version\":\"11.3.0\",\"lessThan\":\"11.3.12\",\"versionType\":\"semver\",\"status\":\"affected\"},{\"version\":\"0.0.0\",\"lessThan\":\"11.0.*\",\"versionType\":\"semver\",\"status\":\"affected\"},{\"version\":\"0.0.0\",\"lessThan\":\"11.1.*\",\"versionType\":\"semver\",\"status\":\"affected\"}]}]}],\"metrics\":{},\"weaknesses\":[{\"source\":\"mlhess@drupal.org\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-79\"}]}],\"references\":[{\"url\":\"https://www.drupal.org/sa-core-2026-009\",\"source\":\"mlhess@drupal.org\"}]}}"
  }
}



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  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


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