Grav Exposes Password Hashes Leading to privilege escalation

Exploitation

No confirmed exploitation recorded. Patch Next marks exploitation only from CISA KEV.

CVSS

6.2 · CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:L

EPSS

• CVE-2025-66304: 0.44% estimated exploitation activity in the next 30 days; percentile 38.29 (FIRST EPSS, 2026-11-03). This is a model estimate, not proof of exploitation or customer exposure.

As published by the source; long descriptions are shortened.

Exposure of Password Hashes Leading to privilege escalation Severity Rating: Medium Vector: Privilege Escalation CVE: XXX CWE: 200 - Exposure of Sensitive Information CVSS Score: 6.2 CVSS Vector: CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:L Analysis It was observed that if a users is given read access on the user account management section of the admin panel can view the password hashes of all users, including the admin user. This exposure can potentially lead to privilege escalation if an attacker can crack these password hashes. An attacker with read access can: View and potentially crack the password hashes. Gain administrative access by cracking the admin password hash. Escalate privileges and compromise the entire admin panel. Proof of Concept 1) Give read access to user accounts to a random user as shown in the following figures: 2) Log in to the admin panel with an account that has read access to user accounts and navigate to the user account management section. 3) Go to the…

Published by the source

2 Dec 2025, 00:37 UTC

Last modified by the source

2 Dec 2025, 00:37 UTC

Source last checked

26 Oct 2026, 14:35 UTC

1. Revision 1 · created · 26 Oct 2026

   Published from ghsa record GHSA-gq3g-666w-7h85

Preview the exact text before you copy it. Commands are read-only suggestions; review them before running anything.

# Patch Next advisory brief: CVE-2025-66304

Advisory: Grav Exposes Password Hashes Leading to privilege escalation
IDs: CVE-2025-66304, GHSA-gq3g-666w-7h85
Record: https://patchnext.com/advisories/cve-2025-66304 (revision 1, source checked 26 Oct 2026, 14:35 UTC)
Inventory: none attached. This brief comes from a public page and does not say whether any deployment is affected.
Severity: Medium (CVSS 6.2)
Exploitation: no confirmed exploitation recorded. Patch Next confirms exploitation only from CISA KEV.
Vendor response: Vendor fix available; fixed versions by package: getgrav/grav 1.8.0-beta.27. A vendor fix does not mean a deployment is fixed.

## Affected components
- Packagist getgrav/grav: affected < 1.8.0-beta.27; fixed in 1.8.0-beta.27

## Suggested inspection (read-only)
- Packagist getgrav/grav: check the installed version with your package manager.

## Supported action
Upgrade each affected component to a fixed version on its release line. For a transitive dependency, upgrade the parent package or add an override or constraint, then regenerate the lockfile. Redeploy every environment that ran an affected version.

## Required regression checks
- Run the test suite and a production build.
- Exercise the features that depend on getgrav/grav.
- Repeat the inspection and confirm that only fixed versions remain installed.

## Rollback considerations
- Keep the previous lockfile and deployment artifact. Rolling back reinstates the vulnerable version, so apply any documented mitigation while you fix forward.

## Unresolved questions
- Which deployments run an affected version?
- Exploitation status can change. Check again before lowering the priority.
- Mark the work resolved only after the fixed version is verified in production.

## Sources
- Verified: https://github.com/advisories/GHSA-gq3g-666w-7h85 (GitHub-reviewed advisory GHSA-gq3g-666w-7h85 lists affected ranges: Packagist getgrav/grav >=0 <1.8.0-beta.27)

Commands are suggestions: review each one before running it.