{"id":"CVE-2026-63006","state":"PUBLISHED","title":"Zammad: HTML sanitizer API path allowlist bypass via interior path traversal in img src/srcset","description":"Zammad is a web based open source helpdesk/customer support system. Prior to 7.1.2, attacker-controlled HTML in inbound emails or tickets could bypass the image URL sanitizer using path traversal sequences. When an authenticated agent views the content, the browser resolves the URL to a protected API endpoint and sends the request with the agent's session cookie, enabling side effects such as forced logout without any user interaction. This issue is fixed in version 7.1.2.","publishedAt":"2026-09-25T18:23:13.578Z","updatedAt":"2026-09-29T18:03:56.994Z","severity":{"score":5.3,"label":"Medium","version":"4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N","source":"GitHub_M"},"assigner":"GitHub_M","products":["zammad zammad"],"affected":[{"vendor":"zammad","product":"zammad","versions":[{"version":"< 7.1.2","status":"affected"}]}],"references":["https://github.com/zammad/zammad/security/advisories/GHSA-33p2-cm7w-62g3","https://github.com/zammad/zammad/commit/856af85c12413087d6a74ffee25b16048a5ed8c3"],"weaknesses":["CWE-22"],"ingestedAt":"2026-10-29T20:12:41.951Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/63xxx/CVE-2026-63006.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-63006","state":"PUBLISHED","datePublished":"2026-09-25T18:23:13.578Z","dateUpdated":"2026-09-29T18:03:56.994Z","assignerShortName":"GitHub_M","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateReserved":"2026-07-14T23:10:57.032Z"},"containers":{"cna":{"title":"Zammad: HTML sanitizer API path allowlist bypass via interior path traversal in img src/srcset","descriptions":[{"lang":"en","value":"Zammad is a web based open source helpdesk/customer support system. Prior to 7.1.2, attacker-controlled HTML in inbound emails or tickets could bypass the image URL sanitizer using path traversal sequences. When an authenticated agent views the content, the browser resolves the URL to a protected API endpoint and sends the request with the agent's session cookie, enabling side effects such as forced logout without any user interaction. This issue is fixed in version 7.1.2."}],"affected":[{"vendor":"zammad","product":"zammad","versions":[{"version":"< 7.1.2","status":"affected"}]}],"references":[{"url":"https://github.com/zammad/zammad/security/advisories/GHSA-33p2-cm7w-62g3","name":"https://github.com/zammad/zammad/security/advisories/GHSA-33p2-cm7w-62g3","tags":["x_refsource_CONFIRM"]},{"url":"https://github.com/zammad/zammad/commit/856af85c12413087d6a74ffee25b16048a5ed8c3","name":"https://github.com/zammad/zammad/commit/856af85c12413087d6a74ffee25b16048a5ed8c3","tags":["x_refsource_MISC"]}],"metrics":[{"cvssV4_0":{"attackVector":"NETWORK","attackComplexity":"LOW","attackRequirements":"NONE","privilegesRequired":"NONE","userInteraction":"PASSIVE","vulnConfidentialityImpact":"NONE","vulnIntegrityImpact":"LOW","vulnAvailabilityImpact":"LOW","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","subAvailabilityImpact":"NONE","baseScore":5.3,"baseSeverity":"MEDIUM","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N","version":"4.0"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-22","lang":"en","description":"CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')","type":"CWE"}]}],"providerMetadata":{"shortName":"GitHub_M","orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateUpdated":"2026-09-25T18:23:13.578Z"},"source":{"advisory":"GHSA-33p2-cm7w-62g3","discovery":"UNKNOWN"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-09-29T18:03:28.018447Z","id":"CVE-2026-63006","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":"2026-09-29T18:03:56.994Z"}}]}}}