FKIE_CVE-2026-55779

Vulnerability from fkie_nvd - Published: 2026-08-28 23:17 - Updated: 2026-08-28 23:17
Severity
5.4 (Medium) - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N
Summary
Silverstripe Versioned provides versioning for Silverstripe models. Prior to 3.2.1, RestoreAction::getRestoreMessage() in src/RestoreAction.php builds ArchiveAdmin restore notifications rendered as CAST_HTML and inserts $restoredItem->Title, $restoredItem->URLSegment, $restoredItem->CMSEditLink(), and $changedProperty['value'] without applying Convert::raw2xml(). When an administrator restores an archived page containing a crafted title or URL segment, the generated restoration message can execute stored JavaScript in the administrator's browser, compromising the confidentiality and integrity of the CMS session. This issue is fixed in version 3.2.1.
References
security-advisories@github.comhttps://github.com/silverstripe/silverstripe-versioned/commit/6e30a2cf8d4b9233690464da61bd0fc4d3e92952
security-advisories@github.comhttps://github.com/silverstripe/silverstripe-versioned/pull/541
security-advisories@github.comhttps://github.com/silverstripe/silverstripe-versioned/releases/tag/3.2.1
security-advisories@github.comhttps://github.com/silverstripe/silverstripe-versioned/security/advisories/GHSA-m4g4-86qc-v8w7
security-advisories@github.comhttps://www.silverstripe.org/download/security-releases/cve-2026-55779
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "silverstripe-versioned",
          "vendor": "silverstripe",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 3.2.1"
            }
          ]
        }
      ],
      "source": "security-advisories@github.com"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Silverstripe Versioned provides versioning for Silverstripe models. Prior to 3.2.1, RestoreAction::getRestoreMessage() in src/RestoreAction.php builds ArchiveAdmin restore notifications rendered as CAST_HTML and inserts $restoredItem-\u003eTitle, $restoredItem-\u003eURLSegment, $restoredItem-\u003eCMSEditLink(), and $changedProperty[\u0027value\u0027] without applying Convert::raw2xml(). When an administrator restores an archived page containing a crafted title or URL segment, the generated restoration message can execute stored JavaScript in the administrator\u0027s browser, compromising the confidentiality and integrity of the CMS session. This issue is fixed in version 3.2.1."
    }
  ],
  "id": "CVE-2026-55779",
  "lastModified": "2026-08-28T23:17:07.357",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 5.4,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "LOW",
          "integrityImpact": "LOW",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "REQUIRED",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 2.5,
        "source": "security-advisories@github.com",
        "type": "Secondary"
      }
    ]
  },
  "published": "2026-08-28T23:17:07.357",
  "references": [
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/silverstripe/silverstripe-versioned/commit/6e30a2cf8d4b9233690464da61bd0fc4d3e92952"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/silverstripe/silverstripe-versioned/pull/541"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/silverstripe/silverstripe-versioned/releases/tag/3.2.1"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/silverstripe/silverstripe-versioned/security/advisories/GHSA-m4g4-86qc-v8w7"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://www.silverstripe.org/download/security-releases/cve-2026-55779"
    }
  ],
  "sourceIdentifier": "security-advisories@github.com",
  "vulnStatus": "Received",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-79"
        }
      ],
      "source": "security-advisories@github.com",
      "type": "Primary"
    }
  ]
}



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