{"id":"CVE-2021-25994","url":"https://www.cyber-defence.io/tools/cve/CVE-2021-25994","generatedAt":"2026-10-27T22:26:36.241Z","title":"In Userfrosting, versions v0.3.1 to v4.6.2 are vulnerable to Host Header Injection.","description":"In Userfrosting, versions v0.3.1 to v4.6.2 are vulnerable to Host Header Injection. By luring a victim application user to click on a link, an unauthenticated attacker can use the “forgot password” functionality to reset the victim’s password and successfully take over their account.","published":"2022-01-03T07:15:07.000Z","lastModified":"2026-06-17T03:42:45.000Z","status":"Modified","sourceIdentifier":"vulnerabilitylab@mend.io","cvss":{"version":"3.1","score":8.8,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H"},"cwe":["CWE-74"],"affected":["userfrosting/userfrosting"],"epss":{"score":0.01549,"percentile":0.74894,"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":"high","text":"High impact if exploited, but EPSS currently rates exploitation as unlikely (1.55%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit."},"changes":[],"references":[{"url":"https://github.com/userfrosting/UserFrosting/commit/796dd78757902435d1bd286415feea78098e45ba","tags":["Patch","Third Party Advisory"],"source":"vulnerabilitylab@mend.io"},{"url":"https://www.whitesourcesoftware.com/vulnerability-database/CVE-2021-25994","tags":["Exploit","Third Party Advisory"],"source":"vulnerabilitylab@mend.io"},{"url":"https://github.com/userfrosting/UserFrosting/commit/796dd78757902435d1bd286415feea78098e45ba","tags":["Patch","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.whitesourcesoftware.com/vulnerability-database/CVE-2021-25994","tags":["Exploit","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2021-25994","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."}