Vulnerability · Published Jun 25, 2026 · Assigned by Joomla
CVE-2026-48945Joomla Extension - getk2.org - Privileged RCE vulnerability in K2 extension for Joomla < 2.26
Medium 5.3
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 26% of all known vulnerabilities).
Severity (CVSS 3.1)5.3Medium
Exploit odds (30 days)0.3%top 73.7% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
The K2 article gallery upload path accepts a zip/tar archive, extracts it under `/media/k2/galleries/<id>/`, and only renames image files (gif/jpg/jpeg/png/webp) to safe names — non-image files (including `.php`) are extracted as-is and remain executable via direct HTTP access.
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:N/UI:N/S:U/C:L/I:N/A:N
References
- https://www.getk2.org/ product