Vulnerability Description
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 Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Joomlaworks | K2 | <= 2.26 |
Related Weaknesses (CWE)
References
- https://www.getk2.org/Product
FAQ
What is CVE-2026-48943?
CVE-2026-48943 is a vulnerability with a CVSS score of 6.5 (MEDIUM). 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, c...
How severe is CVE-2026-48943?
CVE-2026-48943 has been rated MEDIUM with a CVSS base score of 6.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-48943?
Check the references section above for vendor advisories and patch information. Affected products include: Joomlaworks K2.