{"id":"CVE-2026-100238","aliases":["EUVD-2026-89033","GHSA-hg46-8gx2-qp79"],"status":"published","title":"Flow colon-separator and flow-guidedtour-optin-welcome-description messages allow stored XSS","description":"Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in Wikimedia Foundation Mediawiki - Flow Extension allows Stored XSS.\n\nThis issue affects Mediawiki - Flow Extension: from * before 1.46.1, 1.45.5, 1.43.10.","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":0.00188,"percentile":0.08502,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-79"],"published":"2026-09-29T16:12:06Z","modified":"2026-09-30T21:31:59Z","products":[{"vendor":"wikimedia foundation","product":"mediawiki - flow extension"}],"references":[{"url":"https://phabricator.wikimedia.org/T432425"},{"url":"https://gerrit.wikimedia.org/r/q/Ic6149363fe1de2440240fe88aebfd4ae30cea606"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-100238"},{"url":"https://github.com/advisories/GHSA-hg46-8gx2-qp79"}],"sources":{"cve":[{"id":"CVE-2026-100238","title":"Flow colon-separator and flow-guidedtour-optin-welcome-description messages allow stored XSS","description":"Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in Wikimedia Foundation Mediawiki - Flow Extension allows Stored XSS.\n\nThis issue affects Mediawiki - Flow Extension: from * before 1.46.1, 1.45.5, 1.43.10.","status":"published","published":"2026-09-29T16:12:06.871Z","modified":"2026-09-30T20:11:08.57Z","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":"2026-11-02T14:20:06.925367Z"}],"euvd":[{"id":"EUVD-2026-89033","description":"Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in Wikimedia Foundation Mediawiki - Flow Extension allows Stored XSS.\n\nThis issue affects Mediawiki - Flow Extension: from * before 1.46.1, 1.45.5, 1.43.10.","status":"published","published":"2026-09-29T16:12:06Z","modified":"2026-09-30T20:11:08Z","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-hg46-8gx2-qp79","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 - Flow Extension allows Stored XSS.\n\nThis issue affects Mediawiki - Flow Extension: from * before 1.46.1, 1.45.5, 1.43.10.","status":"published","published":"2026-09-29T18:31:46Z","modified":"2026-09-30T21:31:59Z","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":"2026-11-02T15:12:38.770231Z"}],"nvd":[{"id":"CVE-2026-100238","description":"Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in Wikimedia Foundation Mediawiki - Flow Extension allows Stored XSS.\n\nThis issue affects Mediawiki - Flow Extension: from * before 1.46.1, 1.45.5, 1.43.10.","status":"published","published":"2026-09-29T17:17:00.873Z","modified":"2026-09-30T21:16:52.98Z","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":"2026-11-02T14:12:52.413234Z"}]}}