CVE-2026-48940: low-severity vulnerability in getk2.org K2 extension for Joomla
Joomla Extension - getk2.org - Stored-XSS in K2 extension for Joomla < 2.26
Published · Updated
8Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 3.4epss 0.3%
exploitation probability
0.3%top 81% of all CVEs
observed exploitation
nono source reports it
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.
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:N/A:N
Affected products
getk2.org · K2 extension for JoomlaRelated CVEs — getk2.org K2 extension for Joomla
In the same product, most dangerous first.
CVE-2026-48944MEDIUMJoomla Extension - getk2.org - Exposure of sensitive files via attachment copy in K2 extension for Joomla < 2.26EPSS 0.4%CVE-2026-48945MEDIUMJoomla Extension - getk2.org - Privileged RCE vulnerability in K2 extension for Joomla < 2.26EPSS 0.3%CVE-2026-48943MEDIUMJoomla Extension - getk2.org - Authenticated user property mass-assignment in K2 extension for Joomla < 2.26EPSS 0.3%CVE-2026-48946MEDIUMJoomla Extension - getk2.org - Privileged RCE vulnerability in K2 extension for Joomla < 2.26EPSS 0.3%CVE-2026-48941MEDIUMJoomla Extension - getk2.org - Unauthenticated folder delete in K2 extension for Joomla < 2.26EPSS 0.3%CVE-2026-48942MEDIUMJoomla Extension - getk2.org - Stored-XSS in K2 extension for Joomla < 2.26EPSS 0.3%
References
https://www.getk2.org/