{"id":"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.","aliases":["GHSA-pw5x-2mf9-3xc8"],"modified":"2026-07-08T08:12:34.546563716Z","published":"2026-05-28T20:29:20.361Z","database_specific":{"cwe_ids":["CWE-862"],"cna_assigner":"GitHub_M","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/42xxx/CVE-2026-42071.json"},"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"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/mantisbt/mantisbt","events":[{"introduced":"262968479e283b89c8a42a8a26ff8db38d1738fd"},{"fixed":"029d9d203d9e4ae96b3e59d552fa7395cc1e5071"}],"database_specific":{"source":["AFFECTED_FIELD","REFERENCES"],"extracted_events":[{"introduced":"2.23.0"},{"fixed":"2.28.2"}]}}],"versions":["release-2.28.1","release-2.28.0","release-2.27.0","release-2.26.0","release-2.25.0","release-2.24.0","release-2.23.0"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-42071.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:L/VA:L/SC:N/SI:N/SA:N"}]}