High severity · published Aug 14, 2026
CVE-2026-72828
Grav before 1.0.13 API Key Scope Bypass via InvitationsController
7.2
CVSS
0.5%
EPSS
No
On KEV
Description
Grav Plugin API (getgrav/grav-plugin-api) before 1.0.13 fails to enforce API-key scope caps in InvitationsController. The strip-super and accept-groups decisions are gated on a bare isSuperAdmin() check rather than a scope-aware permission check, so a least-privilege API key (scoped to api.users.write) minted on a super account can create an invitation record containing super-admin access flags. When the invitation is accepted, those flags are written verbatim to the new account, resulting in privilege escalation to a fully controlled super account.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
High
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.5% · higher than 42% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
GR
grav · getgrav
before 1.0.13 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-72828
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-72828
github.com
https://github.com/getgrav/grav/security/advisories/GHSA-wvpj-fg8h-843q
www.vulncheck.com
https://www.vulncheck.com/advisories/grav-before-api-key-scope-bypass-via-invitationscontroller
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