{"id":"CVE-2026-102581","url":"https://www.cyber-defence.io/tools/cve/CVE-2026-102581","generatedAt":"2026-10-28T01:12:07.217Z","title":"Insufficient output escaping in templates used to display forum posts enables a stored cross-site scripting (XSS) vulnerability.","description":"A flaw was found in Moodle. Insufficient output escaping in templates used to display forum posts enables a stored cross-site scripting (XSS) vulnerability. An attacker can inject malicious content into a forum post, which then executes arbitrary script code in the browser of another user viewing the affected post.","published":"2026-09-30T09:17:15.000Z","lastModified":"2026-10-01T15:19:53.000Z","status":"Analyzed","sourceIdentifier":"patrick@puiterwijk.org","cvss":{"version":"3.1","score":5.4,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N"},"cwe":["CWE-79"],"affected":["moodle/moodle"],"epss":{"score":0.00198,"percentile":0.09471,"date":"2026-10-26","history":[{"date":"2026-09-30","score":0.00171,"percentile":0.05841}]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"low","text":"Lower severity and a low EPSS score (0.20%). Track it; it rarely justifies an emergency change on its own."},"changes":[{"kind":"new","label":"New CVE","at":"2026-09-30T09:17:15.000Z","detail":{"score":"4.6","severity":"MEDIUM","publishedAt":"2026-09-30T09:17:15.213Z"},"summary":"New CVE, medium severity (CVSS 5.4)."}],"references":[{"url":"http://git.moodle.org/gw?p=moodle.git&a=search&h=HEAD&st=commit&s=MDL-88981","tags":["Patch"],"source":"patrick@puiterwijk.org"},{"url":"https://access.redhat.com/security/cve/CVE-2026-102581","tags":["Third Party Advisory"],"source":"patrick@puiterwijk.org"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2543634","tags":["Issue Tracking","Third Party Advisory"],"source":"patrick@puiterwijk.org"},{"url":"https://moodle.org/mod/forum/discuss.php?d=482499","tags":["Vendor Advisory"],"source":"patrick@puiterwijk.org"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-102581","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}