CVE-2026-62667 Grav API Plugin : API Key 'scopes' Never Enforced - Delegated Least-Privilege Keys Carry Full User ACL
Attackers with limited-scope API keys can perform full administrative actions because the Grav API plugin fails to enforce declared scopes.
- 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-2026-62667?
CVE-2026-62667 is a high-severity missing authorization vulnerability in getgrav grav-plugin-api, published on 19 Aug 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
Grav API Plugin is a RESTful API for Grav CMS that provides full headless access to your site's content. Prior to 1.0.6, the Grav API plugin ApiKeyManager::generateKey() stores a declared scopes array, but ApiKeyAuthenticator::authenticate() does not read keyData[scopes] and returns the owning user's complete identity. AbstractApiController::requirePermission() consequently evaluates the full user ACL, so a key issued for a read-only scope can perform every write, delete, and administrative operation available to the owner. This issue is fixed in version 1.0.6.
Weakness: CWE-862
Which versions are affected by CVE-2026-62667?
How do I fix CVE-2026-62667?
No fix has been published for CVE-2026-62667 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-2026-62667 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-62667 exists.