{"id":"CVE-2026-48946","url":"https://www.cyber-defence.io/tools/cve/CVE-2026-48946","generatedAt":"2026-10-27T23:57:29.859Z","title":"The K2 frontend article-attachment upload path accepts files whose extension is `.php`, and Apache's standard mod_php matches `\\.php$` and executes them under the K2 web user.","description":"The K2 frontend article-attachment upload path accepts files whose extension is `.php`, and Apache's standard mod_php matches `\\.php$` and executes them under the K2 web user. A K2 Author can upload a `shell.php`, then fetch `/media/k2/attachments/shell.php` and execute arbitrary PHP code in the web server's context.","published":"2026-06-25T16:16:37.000Z","lastModified":"2026-10-25T22:10:00.000Z","status":"Analyzed","sourceIdentifier":"security@joomla.org","cvss":{"version":"3.1","score":6.3,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L"},"cwe":["CWE-434"],"affected":["joomlaworks/k2"],"epss":{"score":0.00284,"percentile":0.20691,"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 (0.28%). Track it; it rarely justifies an emergency change on its own."},"changes":[],"references":[{"url":"https://www.getk2.org/","tags":["Product"],"source":"security@joomla.org"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-48946","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."}