What is CVE-2026-48940?

CVE-2026-48940 is a low-severity vulnerability in Getk2.com K2 Extension For Joomla, classified under Cross-site Scripting. CVSS score: 3.4/10. Published 2026-06-25.

How severe is CVE-2026-48940?

Low severity. CVSS v3 base score is 3.4 out of 10.

XSS in Getk2.com K2 Extension For Joomla

CVE-2026-48940

A Joomla user with K2 "create item" rights (Author tier by default) can submit an article whose `embedVideo` POST field contains a raw `<script>` tag; K2 stores it verbatim and renders it unescaped to any visitor of the article page.

Vulnerability class: XSS (Cross-Site Scripting)

CVSS v3 metric

CVSS v3 base score 3.4 (Low). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:N/A:N.

Affected products

Getk2.com K2 Extension For Joomla — versions 1.0-2.26

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

security@joomla.org (product)

Frequently asked questions

What is CVE-2026-48940?: CVE-2026-48940 is a low-severity vulnerability in Getk2.com K2 Extension For Joomla, classified under Cross-site Scripting. CVSS score: 3.4/10. Published 2026-06-25.
How severe is CVE-2026-48940?: Low severity. CVSS v3 base score is 3.4 out of 10.