CVE-2026-3977 projectsend AJAX Endpoints authorization
Remote attackers can bypass authorization checks on AJAX endpoints in ProjectSend, potentially accessing or modifying data without proper permissions.
- 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-2026-3977?
CVE-2026-3977 is a medium-severity missing authorization vulnerability in projectsend, published on 12 Mar 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
A security vulnerability has been detected in projectsend up to r1945. The affected element is an unknown function of the component AJAX Endpoints. The manipulation leads to missing authorization. The attack can be initiated remotely. The identifier of the patch is 35dfd6f08f7d517709c77ee73e57367141107e6b. To fix this issue, it is recommended to deploy a patch.
Which versions are affected by CVE-2026-3977?
How do I fix CVE-2026-3977?
No fix has been published for CVE-2026-3977 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-2026-3977 being exploited?
There is no known exploitation of CVE-2026-3977 in the wild and no public exploit code.
Sources
Also known as GHSA-6p5q-jjvw-vg9p.