{"id":"CVE-2026-44657","state":"PUBLISHED","title":"MantisBT: Stored XSS in File Download","description":"Mantis Bug Tracker (MantisBT) is an open source issue tracker. Prior to 2.28.2, using show_inline=1 parameter and a valid file_show_inline_token CSRF token on file_download.php, an attacker can execute code by uploading a crafted XHTML attachment referencing a JavaScript attachment. This vulnerability is fixed in 2.28.2.","publishedAt":"2026-05-28T20:25:26.816Z","updatedAt":"2026-05-29T14:50:03.745Z","severity":{"score":7.5,"label":"High","version":"4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:P/VC:H/VI:H/VA:L/SC:N/SI:N/SA: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-p6fr-rxq7-xcg8","https://github.com/mantisbt/mantisbt/security/advisories/GHSA-9c3j-xm6v-j7j3","https://github.com/mantisbt/mantisbt/commit/26647b2e68ba30b9d7987d4e03d7a16416684bc2","https://mantisbt.org/bugs/view.php?id=37020"],"weaknesses":["CWE-79"],"ingestedAt":"2026-10-29T20:11:57.932Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/44xxx/CVE-2026-44657.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-44657","state":"PUBLISHED","datePublished":"2026-05-28T20:25:26.816Z","dateUpdated":"2026-05-29T14:50:03.745Z","assignerShortName":"GitHub_M","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateReserved":"2026-05-07T16:20:08.658Z"},"containers":{"cna":{"title":"MantisBT: Stored XSS in File Download","descriptions":[{"lang":"en","value":"Mantis Bug Tracker (MantisBT) is an open source issue tracker. Prior to 2.28.2, using show_inline=1 parameter and a valid file_show_inline_token CSRF token on file_download.php, an attacker can execute code by uploading a crafted XHTML attachment referencing a JavaScript attachment. This vulnerability is fixed in 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-p6fr-rxq7-xcg8","name":"https://github.com/mantisbt/mantisbt/security/advisories/GHSA-p6fr-rxq7-xcg8","tags":["x_refsource_CONFIRM"]},{"url":"https://github.com/mantisbt/mantisbt/security/advisories/GHSA-9c3j-xm6v-j7j3","name":"https://github.com/mantisbt/mantisbt/security/advisories/GHSA-9c3j-xm6v-j7j3","tags":["x_refsource_MISC"]},{"url":"https://github.com/mantisbt/mantisbt/commit/26647b2e68ba30b9d7987d4e03d7a16416684bc2","name":"https://github.com/mantisbt/mantisbt/commit/26647b2e68ba30b9d7987d4e03d7a16416684bc2","tags":["x_refsource_MISC"]},{"url":"https://mantisbt.org/bugs/view.php?id=37020","name":"https://mantisbt.org/bugs/view.php?id=37020","tags":["x_refsource_MISC"]}],"metrics":[{"cvssV4_0":{"attackVector":"NETWORK","attackComplexity":"LOW","attackRequirements":"PRESENT","privilegesRequired":"LOW","userInteraction":"PASSIVE","vulnConfidentialityImpact":"HIGH","vulnIntegrityImpact":"HIGH","vulnAvailabilityImpact":"LOW","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","subAvailabilityImpact":"NONE","baseScore":7.5,"baseSeverity":"HIGH","vectorString":"CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:P/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N","version":"4.0"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-79","lang":"en","description":"CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')","type":"CWE"}]}],"providerMetadata":{"shortName":"GitHub_M","orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateUpdated":"2026-05-28T20:25:26.816Z"},"source":{"advisory":"GHSA-p6fr-rxq7-xcg8","discovery":"UNKNOWN"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-05-29T14:49:46.365542Z","id":"CVE-2026-44657","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-05-29T14:50:03.745Z"}}]}}}