{"id":"CVE-2026-103046","aliases":["EUVD-2026-89478","GHSA-wgjv-5xcv-4jq5"],"status":"published","title":"WikifunctionsFragmentRenderer does unsafe string replacements on user-provided HTML","description":"Improper neutralization of input during web page generation ('cross-site scripting') vulnerability in Wikimedia Foundation MediaWiki - WikiLambda extension allows Stored XSS.\n\nThis issue affects MediaWiki - WikiLambda extension: before 1.46.1.","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":"2026-11-12","score":0.00155,"percentile":0.04649,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-79"],"published":"2026-09-29T22:41:36Z","modified":"2026-09-30T21:33:18Z","products":[{"vendor":"the wikimedia foundation","product":"mediawiki - wikilambda extension"}],"references":[{"url":"https://phabricator.wikimedia.org/T428829","tags":["issue-tracking"]},{"url":"https://gerrit.wikimedia.org/r/c/1307827","tags":["mitigation"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-103046"},{"url":"https://github.com/advisories/GHSA-wgjv-5xcv-4jq5"}],"sources":{"cve":[{"id":"CVE-2026-103046","title":"WikifunctionsFragmentRenderer does unsafe string replacements on user-provided HTML","description":"Improper neutralization of input during web page generation ('cross-site scripting') vulnerability in Wikimedia Foundation MediaWiki - WikiLambda extension allows Stored XSS.\n\nThis issue affects MediaWiki - WikiLambda extension: before 1.46.1.","status":"published","published":"2026-09-29T22:41:36.099Z","modified":"2026-09-30T20:01:03.715Z","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":"2026-11-02T13:34:48.658051Z"}],"euvd":[{"id":"EUVD-2026-89478","description":"Improper neutralization of input during web page generation ('cross-site scripting') vulnerability in Wikimedia Foundation MediaWiki - WikiLambda extension allows Stored XSS.\n\nThis issue affects MediaWiki - WikiLambda extension: before 1.46.1.","status":"published","published":"2026-09-29T22:41:36Z","modified":"2026-09-30T20:01:03Z","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":"2026-11-02T17:27:47.293232Z"}],"ghsa":[{"id":"GHSA-wgjv-5xcv-4jq5","title":"Improper neutralization of input during web page generation ('cross-site scripting')...","description":"Improper neutralization of input during web page generation ('cross-site scripting') vulnerability in Wikimedia Foundation MediaWiki - WikiLambda extension allows Stored XSS.\n\nThis issue affects MediaWiki - WikiLambda extension: before 1.46.1.","status":"published","published":"2026-09-30T00:32:29Z","modified":"2026-09-30T21:33:18Z","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":"2026-11-02T15:12:39.341866Z"}],"nvd":[{"id":"CVE-2026-103046","description":"Improper neutralization of input during web page generation ('cross-site scripting') vulnerability in Wikimedia Foundation MediaWiki - WikiLambda extension allows Stored XSS.\n\nThis issue affects MediaWiki - WikiLambda extension: before 1.46.1.","status":"published","published":"2026-09-29T23:17:22.45Z","modified":"2026-09-30T21:17:07.8Z","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":"2026-11-02T14:12:52.759595Z"}]}}