FKIE_CVE-2026-55805

Vulnerability from fkie_nvd - Published: 2026-08-25 23:17 - Updated: 2026-08-25 23:17
Severity
Summary
Improper Neutralization of Input During Web Page Generation ("Cross-site Scripting") vulnerability in Drupal Drupal core allows Stored XSS. This issue affects Drupal core versions: from 0.0.0 to 10.6.13, from 11.3.0 to 11.3.14, from 11.4.0 to 11.4.4, from 0.0.0 to 11.0.*, from 0.0.0 to 11.1.*, from 0.0.0 to 11.2.*.
References
mlhess@drupal.orghttps://www.drupal.org/sa-core-2026-012
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "collectionURL": "https://www.drupal.org/project/drupal",
          "product": "Drupal core",
          "repo": "https://git.drupalcode.org/project/drupal",
          "vendor": "Drupal",
          "versions": [
            {
              "lessThan": "10.6.13",
              "status": "affected",
              "version": "0.0.0",
              "versionType": "semver"
            },
            {
              "lessThan": "11.3.14",
              "status": "affected",
              "version": "11.3.0",
              "versionType": "semver"
            },
            {
              "lessThan": "11.4.4",
              "status": "affected",
              "version": "11.4.0",
              "versionType": "semver"
            },
            {
              "lessThan": "11.0.*",
              "status": "affected",
              "version": "0.0.0",
              "versionType": "semver"
            },
            {
              "lessThan": "11.1.*",
              "status": "affected",
              "version": "0.0.0",
              "versionType": "semver"
            },
            {
              "lessThan": "11.2.*",
              "status": "affected",
              "version": "0.0.0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "source": "mlhess@drupal.org"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Improper Neutralization of Input During Web Page Generation (\"Cross-site Scripting\") vulnerability in Drupal Drupal core allows Stored XSS. This issue affects Drupal core versions: from 0.0.0 to 10.6.13, from 11.3.0 to 11.3.14, from 11.4.0 to 11.4.4, from 0.0.0 to 11.0.*, from 0.0.0 to 11.1.*, from 0.0.0 to 11.2.*."
    }
  ],
  "id": "CVE-2026-55805",
  "lastModified": "2026-08-25T23:17:19.740",
  "metrics": {},
  "published": "2026-08-25T23:17:19.740",
  "references": [
    {
      "source": "mlhess@drupal.org",
      "url": "https://www.drupal.org/sa-core-2026-012"
    }
  ],
  "sourceIdentifier": "mlhess@drupal.org",
  "vulnStatus": "Received",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-79"
        }
      ],
      "source": "mlhess@drupal.org",
      "type": "Secondary"
    }
  ]
}



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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

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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.