{"id":"CVE-2020-25288","aliases":["EUVD-2020-17976","GHSA-qgrr-f26j-87vf"],"status":"published","title":"MantisBT XXS where a Custom Field with a crafted Regular Expression property is used","description":"An issue was discovered in MantisBT before 2.24.3. When editing an Issue in a Project where a Custom Field with a crafted Regular Expression property is used, improper escaping of the corresponding form input's pattern attribute allows HTML injection and, if CSP settings permit, execution of arbitrary JavaScript.","severity":{"version":"3.1","score":4.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-09","score":0.0149,"percentile":0.7428,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-79"],"published":"2020-09-30T20:26:59Z","modified":"2026-10-20T10:52:52Z","fixes":[{"ecosystem":"Packagist","package":"mantisbt/mantisbt","fixed_in":["2.24.3"],"sources":["ghsa","osv"]}],"affected":[{"source":"ghsa","ecosystem":"Packagist","package":"mantisbt/mantisbt","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"2.23.0"},{"fixed":"2.24.3"}]}]},{"source":"osv","ecosystem":"Packagist","package":"mantisbt/mantisbt","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"2.23.0"},{"fixed":"2.24.3"}]}],"versions":["2.23.0","2.23.1","2.24.0","2.24.1","2.24.2"]}],"products":[{"vendor":"mantisbt","product":"mantisbt"}],"references":[{"url":"https://mantisbt.org/bugs/view.php?id=27275","tags":["x_refsource_MISC","x_transferred","Exploit","Patch","Vendor Advisory","fix","web"]},{"url":"http://github.com/mantisbt/mantisbt/commit/221cf323f16a9738a5b27aaba94758f11281d85c","tags":["x_refsource_MISC","x_transferred","Patch","Third Party Advisory","fix","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2020-25288","tags":["advisory"]},{"url":"https://github.com/mantisbt/mantisbt/commit/221cf323f16a9738a5b27aaba94758f11281d85c","tags":["web"]},{"url":"https://github.com/advisories/GHSA-qgrr-f26j-87vf"},{"url":"https://github.com/mantisbt/mantisbt","tags":["package"]}],"sources":{"cve":[{"id":"CVE-2020-25288","description":"An issue was discovered in MantisBT before 2.24.3. When editing an Issue in a Project where a Custom Field with a crafted Regular Expression property is used, improper escaping of the corresponding form input's pattern attribute allows HTML injection and, if CSP settings permit, execution of arbitrary JavaScript.","status":"published","published":"2020-09-30T20:26:59Z","modified":"2024-08-04T15:33:05.625Z","updated_at":"2026-11-02T14:35:48.52216Z"}],"euvd":[{"id":"EUVD-2020-17976","description":"An issue was discovered in MantisBT before 2.24.3. When editing an Issue in a Project where a Custom Field with a crafted Regular Expression property is used, improper escaping of the corresponding form input's pattern attribute allows HTML injection and, if CSP settings permit, execution of arbitrary JavaScript.","status":"published","published":"2020-09-30T20:26:59Z","modified":"2024-08-04T15:33:05Z","updated_at":"2026-11-03T03:07:17.764085Z"}],"ghsa":[{"id":"GHSA-qgrr-f26j-87vf","title":"MantisBT XXS where a Custom Field with a crafted Regular Expression property is used","description":"An issue was discovered in MantisBT before 2.24.3. When editing an Issue in a Project where a Custom Field with a crafted Regular Expression property is used, improper escaping of the corresponding form input's pattern attribute allows HTML injection and, if CSP settings permit, execution of arbitrary JavaScript.","status":"published","published":"2022-05-24T17:29:50Z","modified":"2025-05-29T15:45:30Z","cvss":[{"version":"3.1","score":4.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N","level":"medium"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T14:38:44.991725Z"}],"nvd":[{"id":"CVE-2020-25288","description":"An issue was discovered in MantisBT before 2.24.3. When editing an Issue in a Project where a Custom Field with a crafted Regular Expression property is used, improper escaping of the corresponding form input's pattern attribute allows HTML injection and, if CSP settings permit, execution of arbitrary JavaScript.","status":"published","published":"2020-09-30T21:15:13.167Z","modified":"2026-06-17T03:06:43.97Z","cvss":[{"version":"3.1","score":4.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N","level":"medium","assessor":"primary"},{"version":"2.0","score":3.5,"vector":"AV:N/AC:M/Au:S/C:N/I:P/A:N","level":"low","assessor":"primary"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T14:06:17.70091Z"}],"osv":[{"id":"CVE-2020-25288","description":"An issue was discovered in MantisBT before 2.24.3. When editing an Issue in a Project where a Custom Field with a crafted Regular Expression property is used, improper escaping of the corresponding form input's pattern attribute allows HTML injection and, if CSP settings permit, execution of arbitrary JavaScript.","status":"published","published":"2020-09-30T21:15:13.167Z","modified":"2026-10-20T10:52:52.702912423Z","cvss":[{"version":"3.1","score":4.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N","level":"medium"}],"updated_at":"2026-11-02T15:44:15.879068Z"},{"id":"GHSA-qgrr-f26j-87vf","title":"MantisBT XXS where a Custom Field with a crafted Regular Expression property is used","description":"An issue was discovered in MantisBT before 2.24.3. When editing an Issue in a Project where a Custom Field with a crafted Regular Expression property is used, improper escaping of the corresponding form input's pattern attribute allows HTML injection and, if CSP settings permit, execution of arbitrary JavaScript.","status":"published","published":"2022-05-24T17:29:50Z","modified":"2025-05-29T16:14:31.055257Z","cvss":[{"version":"3.1","score":4.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N","level":"medium"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T15:46:54.40888Z"}]}}