8.8

CVE-2025-66296

Grav vulnerable to Privilege Escalation in Grav Admin: Missing Username Uniqueness Check Allows Admin Account Takeover

Grav is a file-based Web platform. Prior to 1.8.0-beta.27, a privilege escalation vulnerability exists in Grav’s Admin plugin due to the absence of username uniqueness validation when creating users. A user with the create user permission can create a new account using the same username as an existing administrator account, set a new password/email, and then log in as that administrator. This effectively allows privilege escalation from limited user-manager permissions to full administrator access. This vulnerability is fixed in 1.8.0-beta.27.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Getgrav ≫ Grav Version >= 1.7.49.5 < 1.8.0
Getgrav ≫ Grav Version 1.8.0 Update beta1
Getgrav ≫ Grav Version 1.8.0 Update beta10
Getgrav ≫ Grav Version 1.8.0 Update beta11
Getgrav ≫ Grav Version 1.8.0 Update beta12
Getgrav ≫ Grav Version 1.8.0 Update beta13
Getgrav ≫ Grav Version 1.8.0 Update beta14
Getgrav ≫ Grav Version 1.8.0 Update beta15
Getgrav ≫ Grav Version 1.8.0 Update beta16
Getgrav ≫ Grav Version 1.8.0 Update beta17
Getgrav ≫ Grav Version 1.8.0 Update beta18
Getgrav ≫ Grav Version 1.8.0 Update beta19
Getgrav ≫ Grav Version 1.8.0 Update beta2
Getgrav ≫ Grav Version 1.8.0 Update beta20
Getgrav ≫ Grav Version 1.8.0 Update beta21
Getgrav ≫ Grav Version 1.8.0 Update beta22
Getgrav ≫ Grav Version 1.8.0 Update beta23
Getgrav ≫ Grav Version 1.8.0 Update beta24
Getgrav ≫ Grav Version 1.8.0 Update beta25
Getgrav ≫ Grav Version 1.8.0 Update beta26
Getgrav ≫ Grav Version 1.8.0 Update beta3
Getgrav ≫ Grav Version 1.8.0 Update beta4
Getgrav ≫ Grav Version 1.8.0 Update beta5
Getgrav ≫ Grav Version 1.8.0 Update beta6
Getgrav ≫ Grav Version 1.8.0 Update beta7
Getgrav ≫ Grav Version 1.8.0 Update beta8
Getgrav ≫ Grav Version 1.8.0 Update beta9
VulnDex Vulnerability Enrichment
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EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.31% 0.234
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
security-advisories@github.com 8.8 2.8 5.9
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE-266 Incorrect Privilege Assignment

A product incorrectly assigns a privilege to a particular actor, creating an unintended sphere of control for that actor.

https://github.com/getgrav/grav/commit/3462d94d575064601689b236508c316242e15741
Patch
https://github.com/getgrav/grav/security/advisories/GHSA-cjcp-qxvg-4rjm
Vendor Advisory