{"id":"CVE-2026-77140","state":"PUBLISHED","title":"Broken Access Control in extension \"Telephone Directory\" (telephonedirectory)","description":"The extension validates the HMAC of a frontend employee edit link only in the action that renders the edit form, not in the action that persists the change. An unauthenticated visitor who knows the UID of a visible employee record can send a direct POST request to the update action and overwrite that record without a valid edit link or any ownership check.","publishedAt":"2026-08-25T09:00:36.477Z","updatedAt":"2026-08-27T17:33:00.915Z","severity":{"score":8.7,"label":"High","version":"4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N","source":"TYPO3"},"assigner":"TYPO3","products":["TYPO3 Extension \"Telephone Directory\""],"affected":[{"vendor":"TYPO3","product":"Extension \"Telephone Directory\"","packageName":"jweiland/telephonedirectory","defaultStatus":"unaffected","versions":[{"version":"6.0.0","status":"affected","lessThan":"6.2.0","versionType":"semver"},{"version":"5.0.0","status":"affected","lessThan":"5.0.1","versionType":"semver"},{"version":"0","status":"affected","lessThan":"4.1.1","versionType":"semver"}],"collectionURL":"https://packagist.org/"}],"references":["https://typo3.org/security/advisory/typo3-ext-sa-2026-018"],"weaknesses":["CWE-862","CWE-639"],"ingestedAt":"2026-10-29T20:13:07.220Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/77xxx/CVE-2026-77140.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-77140","state":"PUBLISHED","datePublished":"2026-08-25T09:00:36.477Z","dateUpdated":"2026-08-27T17:33:00.915Z","assignerShortName":"TYPO3","assignerOrgId":"f4fb688c-4412-4426-b4b8-421ecf27b14a","dateReserved":"2026-08-20T13:10:15.962Z"},"containers":{"cna":{"title":"Broken Access Control in extension \"Telephone Directory\" (telephonedirectory)","descriptions":[{"lang":"en","value":"The extension validates the HMAC of a frontend employee edit link only in the action that renders the edit form, not in the action that persists the change. An unauthenticated visitor who knows the UID of a visible employee record can send a direct POST request to the update action and overwrite that record without a valid edit link or any ownership check."}],"affected":[{"vendor":"TYPO3","product":"Extension \"Telephone Directory\"","packageName":"jweiland/telephonedirectory","defaultStatus":"unaffected","versions":[{"version":"6.0.0","status":"affected","lessThan":"6.2.0","versionType":"semver"},{"version":"5.0.0","status":"affected","lessThan":"5.0.1","versionType":"semver"},{"version":"0","status":"affected","lessThan":"4.1.1","versionType":"semver"}],"collectionURL":"https://packagist.org/"}],"references":[{"url":"https://typo3.org/security/advisory/typo3-ext-sa-2026-018","tags":["vendor-advisory"]}],"metrics":[{"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}],"cvssV4_0":{"attackVector":"NETWORK","attackComplexity":"LOW","attackRequirements":"NONE","privilegesRequired":"NONE","userInteraction":"NONE","vulnConfidentialityImpact":"NONE","subConfidentialityImpact":"NONE","vulnIntegrityImpact":"HIGH","subIntegrityImpact":"NONE","vulnAvailabilityImpact":"NONE","subAvailabilityImpact":"NONE","exploitMaturity":"NOT_DEFINED","Safety":"NOT_DEFINED","Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","valueDensity":"NOT_DEFINED","vulnerabilityResponseEffort":"NOT_DEFINED","providerUrgency":"NOT_DEFINED","version":"4.0","baseSeverity":"HIGH","baseScore":8.7,"vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-862","lang":"en","description":"CWE-862 Missing Authorization","type":"CWE"},{"cweId":"CWE-639","lang":"en","description":"CWE-639 Authorization Bypass Through User-Controlled Key","type":"CWE"}]}],"providerMetadata":{"shortName":"TYPO3","orgId":"f4fb688c-4412-4426-b4b8-421ecf27b14a","dateUpdated":"2026-08-27T17:33:00.915Z"},"datePublic":"2026-08-25T09:00:00.000Z","credits":[{"lang":"en","value":"Seungbin Yang","type":"reporter"},{"lang":"en","value":"Hoja Mustaffa Abdul Latheef","type":"remediation developer"}],"source":{"discovery":"UNKNOWN"},"x_generator":{"engine":"Vulnogram 1.0.0"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-08-25T14:04:07.705844Z","id":"CVE-2026-77140","options":[{"Exploitation":"none"},{"Automatable":"yes"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-08-25T14:04:14.715Z"}}]}}}