Vulnerability · Published Jun 25, 2026 · Assigned by Joomla
CVE-2026-48946Joomla Extension - getk2.org - Privileged RCE vulnerability in K2 extension for Joomla < 2.26
Medium 6.3
In plain English
A medium-severity unrestricted file upload in K2 extension for Joomla from getk2.org. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 21% of all known vulnerabilities).
Severity (CVSS 3.1)6.3Medium
Exploit odds (30 days)0.3%top 79.0% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official 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.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| getk2.org | K2 extension for Joomla | 1.0-2.26 |
Weakness: CWE-434 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
References
- https://www.getk2.org/ product