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.

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Attack Requirements None

User Interaction None

Vulnerable System Confidentiality Impact High

Vulnerable System Integrity Impact High

Vulnerable System Availability Impact High

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

No CVSS v3.1

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
getgrav grav-plugin-api unaffected
Version Status Constraints
0 affected < 1.0.20
1.0.20 unaffected —

No data.

No data.

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Project Subscriptions

Vendors Products
Getgrav Subscribe
Grav Subscribe
Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://github.com/getgrav/grav/security/advisories/GHSA-vv8m-jqpm-38x4 cve-icon cve-icon
https://www.vulncheck.com/advisories/grav-api-plugin-authentication-bypass-via-group-inherited-super cve-icon cve-icon
History

Sat, 05 Sep 2026 12:30:00 +0000

Type Values Removed Values Added
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.
Title Grav API Plugin Authentication Bypass via Group-Inherited Super
First Time appeared Getgrav
Getgrav grav
Weaknesses CWE-863
CPEs cpe:2.3:a:getgrav:grav:*:*:*:*:*:*:*:*
Vendors & Products Getgrav
Getgrav grav
References
Metrics cvssV4_0

{'score': 8.7, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-09-05T12:09:07.441Z

Reserved: 2026-09-05T11:51:31.102Z

Link: CVE-2026-86193

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-09-05T13:18:14.593

Modified: 2026-09-05T13:18:14.593

Link: CVE-2026-86193

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-09-05T13:30:05Z

Weaknesses