{"id":"CVE-2026-42071","aliases":["GHSA-pw5x-2mf9-3xc8"],"url":"https://o3.security/vulnerability/CVE-2026-42071","summary":"MantisBT: Private Bugnote Attachment Content Leak via REST API","details":"Mantis Bug Tracker (MantisBT) is an open source issue tracker. From 2.23.0 to 2.28.1, a missing authorization check in MantisBT's file visibility function allows any authenticated user (REPORTER+) to download attachments on private bugnotes they should not be able to access, via the REST API endpoint GET /api/rest/issues/{id}/files and SOAP API mc_issue_attachment_get endpoint. This vulnerability is fixed in 2.28.2.","published":"2026-05-28T20:29:20.361Z","modified":"2026-08-07T11:51:05.346113793Z","cvss":null,"epss":null,"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"Packagist","name":"mantisbt/mantisbt","fixedVersion":"2.28.2"}],"fix":{"url":"https://github.com/mantisbt/mantisbt/commit/029d9d203d9e4ae96b3e59d552fa7395cc1e5071","label":"mantisbt/mantisbt@029d9d2"},"references":[{"type":"WEB","url":"https://mantisbt.org/bugs/view.php?id=27039"},{"type":"WEB","url":"https://mantisbt.org/bugs/view.php?id=36985"},{"type":"WEB","url":"https://mantisbt.org/bugs/view.php?id=37092"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/42xxx/CVE-2026-42071.json"},{"type":"ADVISORY","url":"https://github.com/mantisbt/mantisbt/security/advisories/GHSA-pw5x-2mf9-3xc8"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-42071"},{"type":"FIX","url":"https://github.com/mantisbt/mantisbt/commit/029d9d203d9e4ae96b3e59d552fa7395cc1e5071"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-07T11:51:05.346113793Z"}}