{"id":"GHSA-73vx-49mv-v8w5","summary":"MantisBT has Stored HTML Injection/XSS when displaying Tags in Timeline","details":"Improper escaping of tag names retrieved from History in Timeline (my_view_page.php) allows an attacker to inject HTML and, if CSP settings permit, achieve execution of arbitrary JavaScript, when displaying a tag that has been renamed or deleted.\n\n### Impact\nCross-site scripting (XSS).\n\n### Patches\nf32787c14d4518476fe7f05f992dbfe6eaccd815\n\n### Workarounds\n* Edit offending History entries (using SQL)\n* Wrap `$this-\u003etag_name` in a string_html_specialchars() call in IssueTagTimelineEvent::html()\n\n### Credits\nMantisBT thanks Vishal Shukla for discovering and responsibly reporting the issue.","aliases":["CVE-2026-33548"],"modified":"2026-03-25T20:26:20.126114Z","published":"2026-03-25T20:09:09Z","database_specific":{"cwe_ids":["CWE-79"],"severity":"HIGH","github_reviewed":true,"github_reviewed_at":"2026-03-25T20:09:09Z","nvd_published_at":"2026-03-23T20:16:27Z"},"references":[{"type":"WEB","url":"https://github.com/mantisbt/mantisbt/security/advisories/GHSA-73vx-49mv-v8w5"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-33548"},{"type":"WEB","url":"https://github.com/mantisbt/mantisbt/commit/f32787c14d4518476fe7f05f992dbfe6eaccd815"},{"type":"PACKAGE","url":"https://github.com/mantisbt/mantisbt"},{"type":"WEB","url":"https://mantisbt.org/bugs/view.php?id=36973"}],"affected":[{"package":{"name":"mantisbt/mantisbt","ecosystem":"Packagist","purl":"pkg:composer/mantisbt/mantisbt"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"2.28.0"},{"fixed":"2.28.2"}]}],"versions":["2.28.0","2.28.1"],"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/03/GHSA-73vx-49mv-v8w5/GHSA-73vx-49mv-v8w5.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N"},{"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"}]}