Privilege Escalation Vulnerability in Grav's Admin Plugin
CVE-2025-66296

8.8HIGH

Key Information:

Vendor

Getgrav

Status
Grav
Vendor
CVE Published:
1 December 2025

What is CVE-2025-66296?

Grav, a file-based web platform, contains a vulnerability in its Admin plugin prior to version 1.8.0-beta.27. This flaw allows users with the permission to create new accounts to bypass username uniqueness validation, enabling them to register an account with an existing administrator's username. By setting a new password or email during account creation, the user can gain unauthorized access to the administrator's account, escalating their privileges from user-manager to full administrative control.

Affected Version(s)

grav < 1.8.0-beta.27

References

https://github.com/getgrav/grav/security/advisories/GHSA-...
x_refsource_CONFIRM
https://github.com/getgrav/grav/commit/3462d94d5750646016...
x_refsource_MISC

CVSS V3.1

Score:
8.8
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

JSON
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