{"id":"CVE-2026-3844","url":"https://www.cyber-defence.io/tools/cve/CVE-2026-3844","generatedAt":"2026-10-31T04:55:42.245Z","title":"The Breeze Cache plugin for WordPress is vulnerable to arbitrary file uploads due to missing file type validation in the 'fetch_gravatar_from_remote' function in all versions up to, and including, 2.4.4.","description":"The Breeze Cache plugin for WordPress is vulnerable to arbitrary file uploads due to missing file type validation in the 'fetch_gravatar_from_remote' function in all versions up to, and including, 2.4.4. This makes it possible for unauthenticated attackers to upload arbitrary files on the affected site's server which may make remote code execution possible. The vulnerability can only be exploited if \"Host Files Locally - Gravatars\" is enabled, which is disabled by default.","published":"2026-04-23T03:16:18.000Z","lastModified":"2026-06-17T10:44:20.000Z","status":"Deferred","sourceIdentifier":"security@wordfence.com","cvss":{"version":"3.1","score":9.8,"severity":"CRITICAL","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"},"cwe":["CWE-434"],"affected":[],"epss":{"score":0.27701,"percentile":0.98084,"date":"2026-10-30","history":[{"date":"2026-09-24","score":0.03757,"percentile":0.89471},{"date":"2026-10-25","score":0.27701,"percentile":0.98072}]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"urgent","text":"EPSS puts the probability of exploitation in the next 30 days at 27.7%, higher than 98% of all known CVEs. Patch or mitigate before the next change window."},"changes":[{"kind":"epss","label":"EPSS jump","at":"2026-10-25T00:00:00.000Z","detail":{"to":0.27701,"from":0.03757,"percentile":0.98072},"summary":"EPSS moved from 3.8% to 27.7% probability of exploitation in the next thirty days."},{"kind":"epss","label":"EPSS jump","at":"2026-09-24T00:00:00.000Z","detail":{"to":0.03757,"from":0.27701,"percentile":0.89471},"summary":"EPSS moved from 27.7% to 3.8% probability of exploitation in the next thirty days."}],"references":[{"url":"https://plugins.trac.wordpress.org/browser/breeze/tags/2.4.1/inc/class-breeze-cache-cronjobs.php#L119","source":"security@wordfence.com"},{"url":"https://plugins.trac.wordpress.org/browser/breeze/tags/2.4.1/inc/class-breeze-cache-cronjobs.php#L89","source":"security@wordfence.com"},{"url":"https://plugins.trac.wordpress.org/changeset/3511463/breeze","source":"security@wordfence.com"},{"url":"https://www.wordfence.com/threat-intel/vulnerabilities/id/e342b1c0-6e7f-4e2c-8a52-018df12c12a0?source=cve","source":"security@wordfence.com"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-3844","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."}