{"id":"CVE-2025-53500","aliases":["EUVD-2025-19887","GHSA-4jh6-6j22-8j58"],"status":"published","title":"Stored XSS in MassEditRegex","description":"Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in Wikimedia Foundation Mediawiki - MassEditRegex Extension allows Stored XSS.This issue affects Mediawiki - MassEditRegex Extension: from 1.39.X before 1.39.12, from 1.42.X before 1.42.7, from 1.43.X before 1.43.2.","severity":{"version":"3.1","score":5.6,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L","level":"medium","assessor":"adp","from":"cve"},"epss":{"day":"2026-11-10","score":0.00276,"percentile":0.20201,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-79"],"published":"2025-07-03T16:17:38Z","modified":"2026-10-24T10:31:07Z","products":[{"vendor":"malvineous","product":"masseditregex"},{"vendor":"wikimedia foundation","product":"mediawiki - masseditregex extension"}],"references":[{"url":"https://phabricator.wikimedia.org/T397334","tags":["Exploit","Issue Tracking","Patch","fix"]},{"url":"https://gerrit.wikimedia.org/r/c/mediawiki/extensions/MassEditRegex/+/1163878/","tags":["Patch","fix"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2025-53500"},{"url":"https://gerrit.wikimedia.org/r/c/mediawiki/extensions/MassEditRegex/+/1163878"},{"url":"https://github.com/advisories/GHSA-4jh6-6j22-8j58"}],"sources":{"cve":[{"id":"CVE-2025-53500","title":"Stored XSS in MassEditRegex","description":"Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in Wikimedia Foundation Mediawiki - MassEditRegex Extension allows Stored XSS.This issue affects Mediawiki - MassEditRegex Extension: from 1.39.X before 1.39.12, from 1.42.X before 1.42.7, from 1.43.X before 1.43.2.","status":"published","published":"2025-07-03T16:17:38.293Z","modified":"2025-07-10T23:29:42.412Z","cvss":[{"version":"3.1","score":5.6,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L","level":"medium","assessor":"adp"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T14:32:48.853452Z"}],"euvd":[{"id":"EUVD-2025-19887","description":"Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in Wikimedia Foundation Mediawiki - MassEditRegex Extension allows Stored XSS.This issue affects Mediawiki - MassEditRegex Extension: from 1.39.X before 1.39.12, from 1.42.X before 1.42.7, from 1.43.X before 1.43.2.","status":"published","published":"2025-07-03T16:17:38Z","modified":"2025-07-10T23:29:42Z","cvss":[{"version":"3.1","score":5.6,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L","level":"medium"}],"updated_at":"2026-11-02T20:32:09.102762Z"}],"ghsa":[{"id":"GHSA-4jh6-6j22-8j58","title":"Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting')...","description":"Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in Wikimedia Foundation Mediawiki - MassEditRegex Extension allows Stored XSS.This issue affects Mediawiki - MassEditRegex Extension: from 1.39.X before 1.39.12, from 1.42.X before 1.42.7, from 1.43.X before 1.43.2.","status":"published","published":"2025-07-03T18:31:27Z","modified":"2025-07-03T18:31:27Z","cvss":[{"version":"3.1","score":5.6,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L","level":"medium"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T15:02:53.892162Z"}],"nvd":[{"id":"CVE-2025-53500","description":"Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in Wikimedia Foundation Mediawiki - MassEditRegex Extension allows Stored XSS.This issue affects Mediawiki - MassEditRegex Extension: from 1.39.X before 1.39.12, from 1.42.X before 1.42.7, from 1.43.X before 1.43.2.","status":"published","published":"2025-07-03T17:15:39.99Z","modified":"2026-06-17T09:38:19.997Z","cvss":[{"version":"3.1","score":5.6,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L","level":"medium","assessor":"secondary"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T14:11:15.754475Z"}],"osv":[{"id":"CVE-2025-53500","description":"Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in Wikimedia Foundation Mediawiki - MassEditRegex Extension allows Stored XSS.This issue affects Mediawiki - MassEditRegex Extension: from 1.39.X before 1.39.12, from 1.42.X before 1.42.7, from 1.43.X before 1.43.2.","status":"published","published":"2025-07-03T17:15:39.99Z","modified":"2026-10-24T10:31:07.039820823Z","cvss":[{"version":"3.1","score":5.6,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L","level":"medium"}],"updated_at":"2026-11-02T15:44:50.45326Z"}]}}