Privilege escalation in Getgrav Grav
CVE-2026-72829
The Grav API plugin (getgrav/grav-plugin-api) before 1.0.13 contains an API-key scope-cap bypass in UsersController's create() and update() methods. These methods enforce the scope cap only for api.users.write, but gate super-privilege grants on a bare isSuperAdmin() check that reads access.api.super directly without consulting the key's scopes. As a result, an api.users.write-scoped key minted on a super account can set access.api.super or assign a super-granting group to mint or promote a full super account, then authenticate as that account for uncapped administrative privileges.
Vulnerability class: Privilege Escalation
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.005 (38.1th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 38th percentile — 38.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.005 · change: +0.002
Affected products
- Getgrav Grav — versions 0, 1.0.13
Weakness classification (CWE)
References
- github.com/getgrav/grav/security/advisories/GHSA-jrm3-jpp7-3gmx (vendor-advisory)
- www.vulncheck.com/advisories/grav-before-api-key-scope-bypass-via-userscontroll… (third-party-advisory)
Frequently asked questions
- What is CVE-2026-72829?
- CVE-2026-72829 is a high-severity vulnerability in Getgrav Grav, classified under Improper Privilege Management. CVSS score: 8.8/10. Published 2026-08-14.
- How severe is CVE-2026-72829?
- High severity. CVSS v3 base score is 8.8 out of 10.