{"id":"CVE-2026-30913","url":"https://www.cyber-defence.io/tools/cve/CVE-2026-30913","generatedAt":"2026-10-27T23:08:34.052Z","title":"The nickname is inserted verbatim into plain-text notification emails, and recipients may be misled into visiting attacker-controlled domains.","description":"Flarum is open-source forum software. When the flarum/nicknames extension is enabled, a registered user can set their nickname to a string that email clients interpret as a hyperlink. The nickname is inserted verbatim into plain-text notification emails, and recipients may be misled into visiting attacker-controlled domains.","published":"2026-03-10T17:40:15.000Z","lastModified":"2026-06-17T10:33:08.000Z","status":"Deferred","sourceIdentifier":"security-advisories@github.com","cvss":{"version":"3.1","score":4.6,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N"},"cwe":["CWE-79"],"affected":[],"epss":{"score":0.00176,"percentile":0.07022,"date":"2026-10-26","history":[]},"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 (0.18%). Track it; it rarely justifies an emergency change on its own."},"changes":[],"references":[{"url":"https://github.com/flarum/framework/security/advisories/GHSA-3c4m-j3g4-hh25","source":"security-advisories@github.com"},{"url":"https://github.com/flarum/nicknames/commit/4dde99729abdce8f6e2a7437c86e38735fdcca28","source":"security-advisories@github.com"},{"url":"https://github.com/flarum/nicknames/releases/tag/v1.8.","source":"security-advisories@github.com"},{"url":"https://github.com/flarum/framework/security/advisories/GHSA-3c4m-j3g4-hh25","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-30913","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."}