{"id":"CVE-2026-62944","aliases":["GHSA-h2wf-967x-gxvw"],"status":"published","title":"MantisBT: Stored XSS in print_all_bug_page_word.php","description":"A missing output encoding call in print_all_bug_page_word.php allows any authenticated user to inject arbitrary HTML into an IMG tag's *alt* attribute via an image attachment with a crafted filename such as `probe.\" onload=\"alert(1)`. \n\nWhen any user views the HTML export page (print_all_bug_page_word.php?type_page=html\u0026export=1), the rendered IMG tag becomes `\u003cimg src=\"...\" alt=\"\" onload=\"alert(1)\" /\u003e`, breaking out of the alt attribute. \n\n### Impact\nCross-site scripting.\n\nImpact is limited by MantisBT's Content Security Policy.\n\n### Patches\n- https://github.com/mantisbt/mantisbt/commit/bdd0e364f62759de272dfd4c89b4f51d27be9daa\n\n### Workarounds\nNone\n\n### Resources\n- https://mantisbt.org/bugs/view.php?id=37234\n\n### Credits\nMantisBT thanks the [Dracosec Research Limited](https://dracosec.tech/) team (Chris Chan, Krecendo Hui, William Lam) for discovering and responsibly reporting the issue.","severity":{"version":"4.0","score":8.6,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N","level":"high","from":"ghsa"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-79"],"published":"2026-07-15T18:56:00Z","modified":"2026-07-15T19:11:50Z","fixes":[{"ecosystem":"Packagist","package":"mantisbt/mantisbt","fixed_in":["2.28.4"],"sources":["ghsa","osv"]}],"affected":[{"source":"ghsa","ecosystem":"Packagist","package":"mantisbt/mantisbt","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"last_affected":"2.28.3"},{"fixed":"2.28.4"}]}]},{"source":"osv","ecosystem":"Packagist","package":"mantisbt/mantisbt","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.28.4"}]}],"versions":["2.10.0","2.10.1","2.11.0","2.11.1","2.12.0","2.12.1","2.12.2","2.13.0","2.13.1","2.13.2","2.14.0","2.15.0","2.15.1","2.16.0","2.16.1","2.17.0","2.17.1","2.17.2","2.18.0","2.18.1","2.19.0","2.19.1","2.20.0","2.20.1","2.21.0","2.21.1","2.21.2","2.21.3","2.22.0","2.22.1","2.22.2","2.23.0","2.23.1","2.24.0","2.24.1","2.24.2","2.24.3","2.24.4","2.24.5","2.25.0","2.25.1","2.25.2","2.25.3","2.25.4","2.25.5","2.25.6","2.25.7","2.25.8","2.26.0","2.26.1","2.26.2","2.26.3","2.26.4","2.27.0","2.27.1","2.27.2","2.27.3","2.28.0","2.28.1","2.28.2","2.28.3","2.3.0","2.3.1","2.3.2","2.3.3","2.4.0","2.4.1","2.4.2","2.5.0","2.5.1","2.5.2","2.6.0","2.7.0","2.7.1","2.8.0","2.8.1","2.9.0","2.9.1"]}],"references":[{"url":"https://github.com/mantisbt/mantisbt/security/advisories/GHSA-h2wf-967x-gxvw","tags":["web"]},{"url":"https://github.com/mantisbt/mantisbt/commit/bdd0e364f62759de272dfd4c89b4f51d27be9daa","tags":["web"]},{"url":"https://mantisbt.org/bugs/view.php?id=37234","tags":["web"]},{"url":"https://github.com/advisories/GHSA-h2wf-967x-gxvw"},{"url":"https://github.com/mantisbt/mantisbt","tags":["package"]}],"sources":{"ghsa":[{"id":"GHSA-h2wf-967x-gxvw","title":"MantisBT: Stored XSS in print_all_bug_page_word.php","description":"A missing output encoding call in print_all_bug_page_word.php allows any authenticated user to inject arbitrary HTML into an IMG tag's *alt* attribute via an image attachment with a crafted filename such as `probe.\" onload=\"alert(1)`. \n\nWhen any user views the HTML export page (print_all_bug_page_word.php?type_page=html\u0026export=1), the rendered IMG tag becomes `\u003cimg src=\"...\" alt=\"\" onload=\"alert(1)\" /\u003e`, breaking out of the alt attribute. \n\n### Impact\nCross-site scripting.\n\nImpact is limited by MantisBT's Content Security Policy.\n\n### Patches\n- https://github.com/mantisbt/mantisbt/commit/bdd0e364f62759de272dfd4c89b4f51d27be9daa\n\n### Workarounds\nNone\n\n### Resources\n- https://mantisbt.org/bugs/view.php?id=37234\n\n### Credits\nMantisBT thanks the [Dracosec Research Limited](https://dracosec.tech/) team (Chris Chan, Krecendo Hui, William Lam) for discovering and responsibly reporting the issue.","status":"published","published":"2026-07-15T18:56:00Z","modified":"2026-07-15T18:56:00Z","cvss":[{"version":"4.0","score":8.6,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N","level":"high"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T14:40:43.958448Z"}],"osv":[{"id":"GHSA-h2wf-967x-gxvw","title":"MantisBT: Stored XSS in print_all_bug_page_word.php","description":"A missing output encoding call in print_all_bug_page_word.php allows any authenticated user to inject arbitrary HTML into an IMG tag's *alt* attribute via an image attachment with a crafted filename such as `probe.\" onload=\"alert(1)`. \n\nWhen any user views the HTML export page (print_all_bug_page_word.php?type_page=html\u0026export=1), the rendered IMG tag becomes `\u003cimg src=\"...\" alt=\"\" onload=\"alert(1)\" /\u003e`, breaking out of the alt attribute. \n\n### Impact\nCross-site scripting.\n\nImpact is limited by MantisBT's Content Security Policy.\n\n### Patches\n- https://github.com/mantisbt/mantisbt/commit/bdd0e364f62759de272dfd4c89b4f51d27be9daa\n\n### Workarounds\nNone\n\n### Resources\n- https://mantisbt.org/bugs/view.php?id=37234\n\n### Credits\nMantisBT thanks the [Dracosec Research Limited](https://dracosec.tech/) team (Chris Chan, Krecendo Hui, William Lam) for discovering and responsibly reporting the issue.","status":"published","published":"2026-07-15T18:56:00Z","modified":"2026-07-15T19:11:50.363816Z","cvss":[{"version":"4.0","score":8.6,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N","level":"high"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T15:46:48.546324Z"}]}}