CVE-2026-93504 SveltyCMS User Attribute Update Endpoint +server.ts access control
Remote attackers can bypass access controls on the user attribute update endpoint to modify user data or escalate privileges.
- 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-2026-93504?
CVE-2026-93504 is a medium-severity missing authorization vulnerability in SveltyCMS, published on 18 Sep 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
A vulnerability has been found in SveltyCMS 0.0.6. This affects an unknown part of the file src/routes/api/[...path]/+server.ts of the component User Attribute Update Endpoint. Such manipulation leads to improper access controls. It is possible to launch the attack remotely. The name of the patch is 05b4f9efeb79e9d72a693232334d7529687f896f. It is advisable to implement a patch to correct this issue.
Which versions are affected by CVE-2026-93504?
How do I fix CVE-2026-93504?
No fix has been published for CVE-2026-93504 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-2026-93504 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-93504 exists.
Sources
Also known as GHSA-wfgj-cv78-jfxc.