FKIE_CVE-2026-55808

Vulnerability from fkie_nvd - Published: 2026-07-10 22:16 - Updated: 2026-07-16 15:02
Severity
5.4 (Medium) - CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
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.*.
References
mlhess@drupal.orghttps://www.drupal.org/sa-core-2026-009Vendor Advisory
Impacted products
Vendor Product Version
drupal drupal *
drupal drupal *
drupal drupal *
drupal drupal *
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": "10.5.12",
              "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"
            }
          ]
        }
      ],
      "source": "mlhess@drupal.org"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:drupal:drupal:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "3FA4556B-0535-4AF9-ADB3-49C1CD13E67B",
              "versionEndExcluding": "10.5.12",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:drupal:drupal:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "6673BC1A-0B59-4919-B50A-7944C57559E0",
              "versionEndExcluding": "10.6.11",
              "versionStartIncluding": "10.6.0",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:drupal:drupal:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "1A0D6A3D-FCD1-430B-9040-EC8FC5D6BD67",
              "versionEndExcluding": "11.2.14",
              "versionStartIncluding": "11.0.0",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:drupal:drupal:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "BCFBEF4A-AE17-46C5-B449-68A04752636A",
              "versionEndExcluding": "11.3.12",
              "versionStartIncluding": "11.3.0",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "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.*."
    }
  ],
  "id": "CVE-2026-55808",
  "lastModified": "2026-07-16T15:02:57.820",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 5.4,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "LOW",
          "integrityImpact": "LOW",
          "privilegesRequired": "LOW",
          "scope": "CHANGED",
          "userInteraction": "REQUIRED",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 2.3,
        "impactScore": 2.7,
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-55808",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-07-13T18:18:38.616632Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-07-10T22:16:43.667",
  "references": [
    {
      "source": "mlhess@drupal.org",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://www.drupal.org/sa-core-2026-009"
    }
  ],
  "sourceIdentifier": "mlhess@drupal.org",
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-79"
        }
      ],
      "source": "mlhess@drupal.org",
      "type": "Secondary"
    }
  ]
}



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.