CVE-2026-1253 Missing authorization in Group Chat & Video Chat by AtomChat
Authenticated subscribers can modify critical plugin settings like API keys due to missing capability checks in AtomChat WordPress plugin.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-1253?
CVE-2026-1253 is a medium-severity missing authorization vulnerability in Group Chat & Video Chat by AtomChat, published on 21 Mar 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
The Group Chat & Video Chat by AtomChat plugin for WordPress is vulnerable to unauthorized modification of data due to a missing capability check on the 'atomchat_update_auth_ajax' and 'atomchat_update_layout_ajax' functions in all versions up to, and including, 1.1.7. This makes it possible for authenticated attackers, with Subscriber-level access and above, to update plugin options, including critical settings such as API keys, authentication keys, and layout configurations.
Weakness: CWE-862
Which versions are affected by CVE-2026-1253?
How do I fix CVE-2026-1253?
No fix has been published for CVE-2026-1253 yet. Limit exposure of the affected software until one is available.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2026-1253 being exploited?
There is no known exploitation of CVE-2026-1253 in the wild and no public exploit code.
Sources
Also known as GHSA-m7rf-c5vj-q364.