{"id":"CVE-2026-34754","state":"PUBLISHED","title":"MantisBT allows unauthorized users to upload attachments to restricted issues via REST API","description":"Mantis Bug Tracker (MantisBT) is an open source issue tracker. Versions 2.28.1 and prior allow an authenticated user to upload attachments to private Issues they are not authorized to access. This issue has been fixed in version 2.28.2.","publishedAt":"2026-05-19T23:05:27.818Z","updatedAt":"2026-05-20T15:09:04.024Z","severity":{"score":4.3,"label":"Medium","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N","source":"GitHub_M"},"assigner":"GitHub_M","products":["mantisbt mantisbt"],"affected":[{"vendor":"mantisbt","product":"mantisbt","versions":[{"version":"< 2.28.2","status":"affected"}]}],"references":["https://github.com/mantisbt/mantisbt/security/advisories/GHSA-h4x5-gvx6-3rwc","https://github.com/mantisbt/mantisbt/commit/b262b4d2835b81394d75356dead66e52a6275206","https://mantisbt.org/bugs/view.php?id=36976"],"weaknesses":["CWE-284"],"ingestedAt":"2026-10-29T20:11:40.391Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/34xxx/CVE-2026-34754.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-34754","state":"PUBLISHED","datePublished":"2026-05-19T23:05:27.818Z","dateUpdated":"2026-05-20T15:09:04.024Z","assignerShortName":"GitHub_M","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateReserved":"2026-03-30T19:17:10.225Z"},"containers":{"cna":{"title":"MantisBT allows unauthorized users to upload attachments to restricted issues via REST API","descriptions":[{"lang":"en","value":"Mantis Bug Tracker (MantisBT) is an open source issue tracker. Versions 2.28.1 and prior allow an authenticated user to upload attachments to private Issues they are not authorized to access. This issue has been fixed in version 2.28.2."}],"affected":[{"vendor":"mantisbt","product":"mantisbt","versions":[{"version":"< 2.28.2","status":"affected"}]}],"references":[{"url":"https://github.com/mantisbt/mantisbt/security/advisories/GHSA-h4x5-gvx6-3rwc","name":"https://github.com/mantisbt/mantisbt/security/advisories/GHSA-h4x5-gvx6-3rwc","tags":["x_refsource_CONFIRM"]},{"url":"https://github.com/mantisbt/mantisbt/commit/b262b4d2835b81394d75356dead66e52a6275206","name":"https://github.com/mantisbt/mantisbt/commit/b262b4d2835b81394d75356dead66e52a6275206","tags":["x_refsource_MISC"]},{"url":"https://mantisbt.org/bugs/view.php?id=36976","name":"https://mantisbt.org/bugs/view.php?id=36976","tags":["x_refsource_MISC"]}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":4.3,"baseSeverity":"MEDIUM","confidentialityImpact":"NONE","integrityImpact":"LOW","privilegesRequired":"LOW","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N","version":"3.1"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-284","lang":"en","description":"CWE-284: Improper Access Control","type":"CWE"}]}],"providerMetadata":{"shortName":"GitHub_M","orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateUpdated":"2026-05-19T23:05:27.818Z"},"source":{"advisory":"GHSA-h4x5-gvx6-3rwc","discovery":"UNKNOWN"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-05-20T15:07:20.317286Z","id":"CVE-2026-34754","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-05-20T15:09:04.024Z"}}]}}}