CVE-2026-77132 (GCVE-0-2026-77132)

Vulnerability from cvelistv5 – Published: 2026-09-08 09:18 – Updated: 2026-09-08 12:22
VLAI
Title
TYPO3 CMS - Information Disclosure via Backend Localization Wizard
Summary
It has been discovered that several AJAX routes used for the backend localization wizard failed to perform authorization checks. This allowed authenticated, low-privileged backend users to access information about records and content elements that fall outside of their permitted range. Exploiting this vulnerability requires a low-privileged backend user account. This issue affects TYPO3 CMS versions 10.0.0-10.4.59, 11.0.0-11.5.53, 12.0.0-12.4.48, 13.0.0-13.4.34 and 14.0.0-14.3.6.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-08 12:21 UTC
CWE
  • CWE-862 - Missing Authorization
  • CWE-200 - Exposure of Sensitive Information to an Unauthorized Actor
Impacted products
Vendor Product Version CPE status
TYPO3 TYPO3 CMS Affected: 10.0.0 , < 10.4.60 (semver)
Affected: 11.0.0 , < 11.5.54 (semver)
Affected: 12.0.0 , < 12.4.49 (semver)
Affected: 13.0.0 , < 13.4.35 (semver)
Affected: 14.0.0 , < 14.3.7 (semver)
    cpe:2.3:a:typo3:typo3:*:*:*:*:*:*:*:*
    cpe:2.3:a:typo3:typo3:*:*:*:*:*:*:*:*
    cpe:2.3:a:typo3:typo3:*:*:*:*:*:*:*:*
    cpe:2.3:a:typo3:typo3:*:*:*:*:*:*:*:*
    cpe:2.3:a:typo3:typo3:*:*:*:*:*:*:*:*
Create a notification for this product.
Show details on NVD website

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              "value": "It has been discovered that several AJAX routes used for the backend localization wizard failed to perform authorization checks. This allowed authenticated, low-privileged backend users to access information about records and content elements that fall outside of their permitted range. Exploiting this vulnerability requires a low-privileged backend user account.\u00a0This issue affects TYPO3 CMS versions 10.0.0-10.4.59, 11.0.0-11.5.53, 12.0.0-12.4.48, 13.0.0-13.4.34 and 14.0.0-14.3.6."
            }
          ],
          "metrics": [
            {
              "cvssV4_0": {
                "Automatable": "NOT_DEFINED",
                "Recovery": "NOT_DEFINED",
                "Safety": "NOT_DEFINED",
                "attackComplexity": "LOW",
                "attackRequirements": "NONE",
                "attackVector": "NETWORK",
                "baseScore": 5.3,
                "baseSeverity": "MEDIUM",
                "exploitMaturity": "NOT_DEFINED",
                "privilegesRequired": "LOW",
                "providerUrgency": "NOT_DEFINED",
                "subAvailabilityImpact": "NONE",
                "subConfidentialityImpact": "NONE",
                "subIntegrityImpact": "NONE",
                "userInteraction": "NONE",
                "valueDensity": "NOT_DEFINED",
                "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N",
                "version": "4.0",
                "vulnAvailabilityImpact": "NONE",
                "vulnConfidentialityImpact": "LOW",
                "vulnIntegrityImpact": "NONE",
                "vulnerabilityResponseEffort": "NOT_DEFINED"
              },
              "format": "CVSS",
              "scenarios": [
                {
                  "lang": "en",
                  "value": "GENERAL"
                }
              ]
            }
          ],
          "problemTypes": [
            {
              "descriptions": [
                {
                  "cweId": "CWE-862",
                  "description": "CWE-862 Missing Authorization",
                  "lang": "en",
                  "type": "CWE"
                },
                {
                  "cweId": "CWE-200",
                  "description": "CWE-200 Exposure of Sensitive Information to an Unauthorized Actor",
                  "lang": "en",
                  "type": "CWE"
                }
              ]
            }
          ],
          "providerMetadata": {
            "dateUpdated": "2026-09-08T09:18:41.605Z",
            "orgId": "f4fb688c-4412-4426-b4b8-421ecf27b14a",
            "shortName": "TYPO3"
          },
          "references": [
            {
              "tags": [
                "vendor-advisory"
              ],
              "url": "https://news.typo3.com/security/advisory/typo3-core-sa-2026-022"
            },
            {
              "name": "Git commit of main branch",
              "tags": [
                "patch"
              ],
              "url": "https://github.com/TYPO3/typo3/commit/c232421325bd18fc4d13efac0fc018a57da2dcd6"
            },
            {
              "name": "Git commit of 14.3 branch",
              "tags": [
                "patch"
              ],
              "url": "https://github.com/TYPO3/typo3/commit/35e070fc654def838fbdc45562c2c095d44ca086"
            },
            {
              "name": "Git commit of 13.4 branch",
              "tags": [
                "patch"
              ],
              "url": "https://github.com/TYPO3/typo3/commit/1c63ce806d1ccac839f4aa54ac7f48a22dd7ea64"
            }
          ],
          "source": {
            "discovery": "UNKNOWN"
          },
          "title": "TYPO3 CMS - Information Disclosure via Backend Localization Wizard",
          "x_generator": {
            "engine": "Vulnogram 1.0.1"
          }
        }
      },
      "cveMetadata": {
        "assignerOrgId": "f4fb688c-4412-4426-b4b8-421ecf27b14a",
        "assignerShortName": "TYPO3",
        "cveId": "CVE-2026-77132",
        "datePublished": "2026-09-08T09:18:41.605Z",
        "dateReserved": "2026-08-20T13:10:12.062Z",
        "dateUpdated": "2026-09-08T12:22:01.555Z",
        "state": "PUBLISHED"
      },
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}



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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

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.

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Detection rules are retrieved from Rulezet.

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Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.


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