HIGHVulnerability
Verified
Global

NVD HIGH: CVE-2026-100670 — Grav CMS 2.0.14 through 2.0.24 contains a privilege escalation vulnerability in ...

·Source: NIST NVD

Updated:

Executive Summary

Grav CMS 2.0.14 through 2.0.24 contains a privilege escalation vulnerability in the group and account blueprints. The access map is gated by a `security@: admin.super` guard that is resolved by the field's exact path, so a submitted flat dot-notation key such as `access.admin.super` (instead of the nested `access[admin][super]`) matches no blueprint rule, survives BlueprintSchema::filterArray() an

Analysis

Grav CMS 2.0.14 through 2.0.24 contains a privilege escalation vulnerability in the group and account blueprints. The access map is gated by a `security@: admin.super` guard that is resolved by the field's exact path, so a submitted flat dot-notation key such as `access.admin.super` (instead of the nested `access[admin][super]`) matches no blueprint rule, survives BlueprintSchema::filterArray() and flattening, and is written by FlexObject::update() via setNestedProperty(), which splits on `.` and reconstructs the nested value. An authenticated backend operator using the flex accounts backend who holds admin.users but not admin.super can therefore grant admin.super to their own account or to a group they belong to and escalate to full super-admin, gaining control over configuration, plugin and theme installation, the file manager, and all accounts. Fixed in 2.0.25, which drops any dotted key whose ancestor path is disabled or marked validate.ignore. CVSS Score: 8.8. Published: 2026-09-26T14:16:50.583.

Indicators of Compromise (1)

CVE (1)
CVE-2026-100670
NVDMITRE CVE
Source Attribution

Originally published by NIST NVD on Sep 26, 2026. Verified by: NIST.

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