CVE-2026-48945: Joomla Extension - getk2.org - Privileged RCE vulnerability in K2 extension for Joomla < 2.26
Published Jun 25, 2026
·Updated
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 Software
2 affected components
Joomla K2 extension (getk2.com)<2.26
JoomlaWorks K2 Joomla\!<=2.26
Event History
Jun 25, 2026
CVE Published
via MITRE·03:26 PM
Data Sourced
via MITRE·03:26 PM
DescriptionWeakness
Data Sourced
via NVD·04:16 PM
DescriptionSeverityWeaknessAffected Software
Frequently Asked Questions
1
What is the severity of CVE-2026-48945?
CVE-2026-48945 has a medium severity score of 5.3 on the CVSS scale.
2
How do I fix CVE-2026-48945?
To fix CVE-2026-48945, update the K2 extension for Joomla to version 2.26 or higher.
3
What type of vulnerability is CVE-2026-48945?
CVE-2026-48945 is classified as a Privileged Remote Code Execution (RCE) vulnerability.
4
What effect does CVE-2026-48945 have on Joomla sites?
CVE-2026-48945 allows attackers to upload malicious files through the K2 extension, potentially compromising the site.
5
Which versions of the K2 extension are affected by CVE-2026-48945?
CVE-2026-48945 affects all versions of the K2 extension for Joomla prior to 2.26.