{"id":"CVE-2026-102586","url":"https://www.cyber-defence.io/tools/cve/CVE-2026-102586","generatedAt":"2026-10-28T03:39:48.950Z","title":"Insufficient sanitization of username input on the password reset page allows a remote attacker to conduct a cross-site scripting (XSS) attack.","description":"A flaw was found in Moodle. Insufficient sanitization of username input on the password reset page allows a remote attacker to conduct a cross-site scripting (XSS) attack. By convincing an unauthenticated user to access a specially crafted password reset link, an attacker could execute arbitrary script in the victim's browser.","published":"2026-09-30T09:17:16.000Z","lastModified":"2026-10-01T15:48:32.000Z","status":"Analyzed","sourceIdentifier":"patrick@puiterwijk.org","cvss":{"version":"3.1","score":6.1,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N"},"cwe":["CWE-79"],"affected":["moodle/moodle"],"epss":{"score":0.00276,"percentile":0.19958,"date":"2026-10-27","history":[{"date":"2026-09-30","score":0.00286,"percentile":0.19035}]},"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 (0.28%). Track it; it rarely justifies an emergency change on its own."},"changes":[{"kind":"scored","label":"Newly scored","at":"2026-10-01T17:15:05.000Z","detail":{"from":"4.3","score":"6.1","severity":"MEDIUM","fromSeverity":"MEDIUM"},"summary":"Now scored CVSS 6.1 MEDIUM (was 4.3)."},{"kind":"new","label":"New CVE","at":"2026-09-30T09:17:16.000Z","detail":{"score":"4.3","severity":"MEDIUM","publishedAt":"2026-09-30T09:17:15.897Z"},"summary":"New CVE, medium severity (CVSS 6.1)."}],"references":[{"url":"http://git.moodle.org/gw?p=moodle.git&a=search&h=HEAD&st=commit&s=MDL-88335","tags":["Patch"],"source":"patrick@puiterwijk.org"},{"url":"https://access.redhat.com/security/cve/CVE-2026-102586","tags":["Third Party Advisory"],"source":"patrick@puiterwijk.org"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2543641","tags":["Issue Tracking","Third Party Advisory"],"source":"patrick@puiterwijk.org"},{"url":"https://moodle.org/mod/forum/discuss.php?d=482504","tags":["Vendor Advisory"],"source":"patrick@puiterwijk.org"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-102586","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."}