{"id":"CVE-2025-53488","aliases":["EUVD-2025-20311","GHSA-4fx8-qmwg-rwqv"],"status":"published","title":"Stored XSS in WikiHiero","description":"Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in Wikimedia Foundation Mediawiki - WikiHiero Extension allows Stored XSS.This issue affects Mediawiki - WikiHiero Extension: from 1.43.X before 1.43.2.","severity":{"version":"3.1","score":6.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","level":"medium","assessor":"adp","from":"cve"},"epss":{"day":"2026-11-10","score":0.00217,"percentile":0.1225,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-79"],"published":"2025-07-07T18:44:40Z","modified":"2026-06-17T09:38:18Z","products":[{"vendor":"wikimedia foundation","product":"mediawiki - wikihiero extension"}],"references":[{"url":"https://phabricator.wikimedia.org/T396524","tags":["exploit"]},{"url":"https://gerrit.wikimedia.org/r/c/mediawiki/extensions/wikihiero/+/1166018"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2025-53488"},{"url":"https://github.com/advisories/GHSA-4fx8-qmwg-rwqv"}],"sources":{"cve":[{"id":"CVE-2025-53488","title":"Stored XSS in WikiHiero","description":"Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in Wikimedia Foundation Mediawiki - WikiHiero Extension allows Stored XSS.This issue affects Mediawiki - WikiHiero Extension: from 1.43.X before 1.43.2.","status":"published","published":"2025-07-07T18:44:40.031Z","modified":"2025-07-10T23:34:04.537Z","cvss":[{"version":"3.1","score":6.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","level":"medium","assessor":"adp"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T14:32:49.180768Z"}],"euvd":[{"id":"EUVD-2025-20311","description":"Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in Wikimedia Foundation Mediawiki - WikiHiero Extension allows Stored XSS.This issue affects Mediawiki - WikiHiero Extension: from 1.43.X before 1.43.2.","status":"published","published":"2025-07-07T18:44:40Z","modified":"2025-07-10T23:34:04Z","cvss":[{"version":"3.1","score":6.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","level":"medium"}],"updated_at":"2026-11-02T20:32:09.102762Z"}],"ghsa":[{"id":"GHSA-4fx8-qmwg-rwqv","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 - WikiHiero Extension allows Stored XSS.This issue affects Mediawiki - WikiHiero Extension: from 1.43.X before 1.43.2.","status":"published","published":"2025-07-07T21:31:21Z","modified":"2025-07-08T18:32:30Z","cvss":[{"version":"3.1","score":6.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","level":"medium"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T15:02:57.612558Z"}],"nvd":[{"id":"CVE-2025-53488","description":"Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in Wikimedia Foundation Mediawiki - WikiHiero Extension allows Stored XSS.This issue affects Mediawiki - WikiHiero Extension: from 1.43.X before 1.43.2.","status":"published","published":"2025-07-07T19:15:23.413Z","modified":"2026-06-17T09:38:18.31Z","cvss":[{"version":"3.1","score":6.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","level":"medium","assessor":"secondary"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T14:11:16.997062Z"}]}}