What is CVE-2026-48945?

CVE-2026-48945 is a medium-severity vulnerability in Getk2.com K2 Extension For Joomla, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 5.3/10. Published 2026-06-25.

How severe is CVE-2026-48945?

Medium severity. CVSS v3 base score is 5.3 out of 10.

Arbitrary file upload in Getk2.com K2 Extension For Joomla

CVE-2026-48945

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 re…

Vulnerability class: Unrestricted File Upload

CVSS v3 metric

CVSS v3 base score 5.3 (Medium). Vector: 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 — versions 1.0-2.26

Weakness classification (CWE)

CWE-434 — Unrestricted Upload of File with Dangerous Type

References

security@joomla.org (product)

Frequently asked questions

What is CVE-2026-48945?: CVE-2026-48945 is a medium-severity vulnerability in Getk2.com K2 Extension For Joomla, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 5.3/10. Published 2026-06-25.
How severe is CVE-2026-48945?: Medium severity. CVSS v3 base score is 5.3 out of 10.