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Vulnerabilities
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CVE-2025-68456

Updated on 05 Jan 2026

Severity

7.0 High severity

Details

CVSS score
7.0
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
CWE ID
Links
NISTCIRCLRHELUbuntu

Overview

About vulnerability

Unauthenticated users can trigger database backup operations the updater/backup action, potentially leading to resource exhaustion or information disclosure.

Users should update to the patched versions (5.8.21 and 4.16.17) to mitigate the issue.

Craft 3 users should update to the latest Craft 4 and 5 releases, which include the fixes.

References:

https://github.com/craftcms/cms/commit/f83d4e0c6b906743206b4747db4abf8164b8da39

https://github.com/craftcms/cms/blob/5.x/CHANGELOG.md#5821---2025-12-04

Affected Endpoints

  • POST /admin/actions/updater/backup (unauthenticated)

Vulnerability Details

Root Cause

All updater/* actions are explicitly configured with anonymous access:

// BaseUpdaterController.php
protected array|bool|int $allowAnonymous = self::ALLOW_ANONYMOUS_LIVE | self::ALLOW_ANONYMOUS_OFFLINE;

Attack Vector

  1. Send unauthenticated POST request to /admin/actions/updater/backup
  2. Database backup executes with configured backupCommand

Details

Affected product:
craftcms/cms , craftcms/feed-me
Affected packages:
cms @ 3.9.15 (+1 more)

Fixes