CVE-2026-16965 Solace Extra < 1.6.1 - Subscriber+ Post Meta Update via solace_update_sitebuilder_status
Authenticated users can modify arbitrary post metadata and deactivate site templates due to missing capability checks in the Solace Extra 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-2026-16965?
CVE-2026-16965 is a medium-severity missing authorization vulnerability in Unknown Solace Extra, published on 9 Aug 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
The Solace Extra WordPress plugin before 1.6.1 does not perform capability or nonce checks in one of its AJAX actions, allowing any authenticated user such as a subscriber (and, via CSRF, any logged-in user) to update post meta on arbitrary posts and to deactivate the site's active templates.
Which versions are affected by CVE-2026-16965?
How do I fix CVE-2026-16965?
No fix has been published for CVE-2026-16965 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-2026-16965 being exploited?
There is no known exploitation of CVE-2026-16965 in the wild and no public exploit code.
Sources
Also known as GHSA-777w-f323-336m.