High severity · published Sep 5, 2026
CVE-2026-86193
Grav API Plugin Authentication Bypass via Group-Inherited Super
8.7
CVSS
0.4%
EPSS
No
On KEV
Description
grav-plugin-api before 1.0.20 fails to validate group-inherited super permissions in user-management guards, allowing non-super user managers to modify super-admin accounts. Attackers with api.access and api.users.write can patch password fields on group-super accounts to gain full administrative control.
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 30% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
GR
grav-plugin-api · getgrav
before 1.0.20 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-86193
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-86193
github.com
https://github.com/getgrav/grav/security/advisories/GHSA-vv8m-jqpm-38x4
www.vulncheck.com
https://www.vulncheck.com/advisories/grav-api-plugin-authentication-bypass-via-group-inherited-super
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