Vulnerability · Published Jun 25, 2026 · Assigned by Joomla
CVE-2026-48940Joomla Extension - getk2.org - Stored-XSS in K2 extension for Joomla < 2.26
Low 3.4
In plain English
A low-severity cross-site scripting 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 21% of all known vulnerabilities).
Severity (CVSS 3.1)3.4Low
Exploit odds (30 days)0.3%top 79.0% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
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.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| getk2.org | K2 extension for Joomla | 1.0-2.26 |
Weakness: CWE-79 · Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:N/A:N
References
- https://www.getk2.org/ product