Critical severity · published Aug 18, 2026
CVE-2026-75837
Grav before 2.0.14 Privilege Escalation via Group Access Field
9.1
CVSS
0.5%
EPSS
No
On KEV
Description
Grav before 2.0.14 fails to guard the access field in the core group blueprint with the required security@: admin.super restriction. A delegated admin.users operator can save a group with access[admin][super]=true to escalate to super-admin, gaining scheduler and Twig evaluation capabilities.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
High
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Changed
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 2.0.14 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-75837
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-75837
vendor-advisory
https://github.com/getgrav/grav/security/advisories/GHSA-xhfv-7758-r9hx
third-party-advisory
https://www.vulncheck.com/advisories/grav-before-privilege-escalation-via-group-access-field
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