{"id":"GHSA-fh48-f69w-7vmp","summary":"MantisBT Vulnerable to Stored HTML Injection in Tag Delete Confirmation","details":"Improper escaping of Tag name when deleting it in tag_delete.php allows an attacker to inject HTML and, if CSP settings permit, achieve execution of arbitrary JavaScript.\n\n### Impact\nCross-site scripting (XSS).\n\n### Patches\n80990f43153167c73f11eb4b2bc7108d0c3d6b46\n\n### Workarounds\n* Revert commit d6890320752ecf37bd74d11fe14fe7dc12335be9\n* Manually edit language files to remove the sprintf placeholder `%1$s` from *$s_tag_delete_message*  string, for example with `sed -r -i '/tag_delete_message/s/.%1\\$s.//' -- lang/`\n\n### Credits\nMantisBT hanks Vishal Shukla for discovering and responsibly reporting the issue.","aliases":["CVE-2026-33517"],"modified":"2026-03-25T20:26:19.897008Z","published":"2026-03-25T19:56:00Z","database_specific":{"severity":"HIGH","github_reviewed":true,"github_reviewed_at":"2026-03-25T19:56:00Z","nvd_published_at":"2026-03-23T20:16:27Z","cwe_ids":["CWE-79"]},"references":[{"type":"WEB","url":"https://github.com/mantisbt/mantisbt/security/advisories/GHSA-fh48-f69w-7vmp"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-33517"},{"type":"WEB","url":"https://github.com/mantisbt/mantisbt/commit/80990f43153167c73f11eb4b2bc7108d0c3d6b46"},{"type":"WEB","url":"https://github.com/mantisbt/mantisbt/commit/d6890320752ecf37bd74d11fe14fe7dc12335be9"},{"type":"PACKAGE","url":"https://github.com/mantisbt/mantisbt"},{"type":"WEB","url":"https://mantisbt.org/bugs/view.php?id=36971"}],"affected":[{"package":{"name":"mantisbt/mantisbt","ecosystem":"Packagist","purl":"pkg:composer/mantisbt/mantisbt"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"2.28.0"},{"fixed":"2.28.1"}]}],"versions":["2.28.0"],"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/03/GHSA-fh48-f69w-7vmp/GHSA-fh48-f69w-7vmp.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N"}]}