CVE-2026-48945

Joomla Extension - getk2.com - Privileged RCE vulnerability in K2 extension for Joomla < 2.26

CVSS 5.3 MEDIUMEPSS 0.2%CWE-434

Vexday Risk Score

13Low

SSVC decision (CISA)

Track

No exploitation signal → monitor

CVSS 5.3EPSS 0.2%KEV nãoPoC —Nuclei —Metasploit —Patch —

Lifecycle

25 Jun 2026Published on NVD

Recommendation: Monitor — no exploitation signal at the moment.

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.

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Affected products

getk2.com · K2 extension for Joomla

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References

https://www.getk2.org/