CVE-2026-48943: medium-severity vulnerability in getk2.org K2 extension for Joomla
Joomla Extension - getk2.org - Authenticated user property mass-assignment in K2 extension for Joomla < 2.26
Published · Updated
13Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 6.5epss 0.3%
exploitation probability
0.3%top 79% of all CVEs
observed exploitation
nono source reports it
K2 ≤ 2.24 contains a mass-assignment defect in the K2 system user plugin `plg_user_k2`. A Registered Joomla user, by including the field `K2UserForm=1` in a standard `com_users` `profile.save` POST, can write arbitrary values into the `notes`, `image`, and `plugins` columns of their own row in the `#__k2_users` table — none of which are exposed by the K2 frontend profile-edit form.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/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-2026-48940LOWJoomla Extension - getk2.org - Stored-XSS 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/