PT-2026-76937 · Grav · Grav

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CVE-2026-75837

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Published

2026-08-18

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Updated

2026-08-18

CVSS v4.0

9.3

Critical

VectorAV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Name of the Vulnerable Software and Affected Versions Grav versions prior to 2.0.14
Description An issue exists where the access field in the core group blueprint is not properly guarded by the security@: admin.super restriction. This allows a delegated admin.users operator to escalate their privileges to super-admin by saving a group with the access[admin][super] variable set to true. Upon escalation, the user gains capabilities for scheduler management and Twig evaluation, which is a template engine used to generate HTML.
Recommendations Update Grav to version 2.0.14 or later.

Exploit

Fix

LPE

Improper Privilege Management

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Weakness Enumeration

Related Identifiers

CVE-2026-75837
GHSA-XHFV-7758-R9HX

Affected Products

Grav