CVE-2026-75835 Grav API Plugin before 1.0.14 Missing Authorization
An attacker with a scoped API key can bypass scope restrictions to access unauthorized UI metadata and item definitions, leading to information disclosure.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-75835?
CVE-2026-75835 is a critical missing authorization vulnerability in getgrav grav, published on 18 Aug 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Grav API plugin (getgrav/grav-plugin-api) before 1.0.14 contains a missing authorization vulnerability in userPassesAuthorize() (AbstractApiController.php). The function fails to consult the calling request's API key scopes, relying instead on the account's raw super-admin flag and ACL grants. As a result, an authenticated attacker holding a scoped API key minted on a privileged account can bypass their declared scope restrictions to access authorize-gated UI metadata and item definitions (sidebar/menubar/widget items and users-list columns/row-actions/filter-tabs) that their key scope should deny, resulting in information disclosure.
Weakness: CWE-862
Which versions are affected by CVE-2026-75835?
How do I fix CVE-2026-75835?
No fix has been published for CVE-2026-75835 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-2026-75835 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-75835 exists.
Sources
Also known as GHSA-c746-wcwc-p482.