Security Alert Summary
The UpdraftPlus: WP Backup & Migration Plugin before version 1.26.7 lacks CSRF checks in one of its backup management actions. An attacker could craft a link that causes a logged-in administrator to restore an existing backup, reverting the site database and files to an earlier state.
CVE Details
- CVE ID: CVE-2026-76549
- Affected component: UpdraftPlus: WP Backup & Migration Plugin (backup management action)
- Affected versions: Versions before 1.26.7 (less than 1.26.7)
- Published: August 27, 2026 at 06:17:26 AM UTC
- Last modified: August 27, 2026 at 06:17:26 AM UTC
- CVSS v3.1: Not provided in the CVE data
- Authentication / privileges / user interaction: The issue requires a victim who is a logged-in administrator – an attacker must trick that administrator (for example via a crafted link) to perform the restore action. Privilege required: administrator. User interaction: required (social engineering to click the crafted link).
- Primary impact: Integrity – restoration of database and files to an earlier state. Potential secondary impacts to confidentiality and availability depend on the contents of the restored backup and the restore process.
- CWE / weakness ID: Not provided. The description indicates missing CSRF checks in a backup management action.
Technical Details
The vulnerability is described as a missing Cross-Site Request Forgery (CSRF) check in one of the plugin’s backup management actions. Because that action can trigger a restore of an existing backup, a crafted link could cause a logged-in administrator to unintentionally initiate a restore.
The provided data does not name specific PHP functions, action hooks, or REST API endpoints involved. The core issue is the absence of a verification token or similar CSRF protection on the backup restore action, which enables state-changing behavior via a forged request when an administrator is authenticated.
Impact is limited to the effect of restoring a backup: the site’s database and files would revert to the contents of the chosen backup. This can recover older content and settings and may remove recent changes. The CVE description does not indicate code execution, privilege escalation beyond the administrator context, or a publicly known exploit at the time of publication.
How This Could Impact Your Website
Consider a small team managing a WordPress site: the site owner, internal editors, and an external contractor who helps with content. If an attacker crafts a URL and convinces a logged-in administrator to click it (for example via email or chat), the site could be restored to an older backup. Practical consequences include loss of recent posts or pages, reversion of settings, and restoration of older user records or plugin states.
An older backup might contain legacy user email addresses or account records that were later removed. Restoring those backups could re-expose internal email lists or recreate accounts that had been deactivated, increasing the risk of targeted phishing or social engineering against staff.
If youre unsure whether your site is affected or how to assess your current user roles and plugins, it may be worth having a professional review.
Recommended Actions
- Update the affected plugin as soon as a patched version is available.
- Review and reduce unnecessary user roles, especially administrator and contributor accounts.
- Enforce strong passwords and two-factor authentication for editors and administrators.
- Remove unused or unmaintained plugins.
- Monitor site activity and logs for unusual behavior, such as unexpected restore actions or admin sessions originating from unfamiliar IP addresses.
If youd like help reviewing your plugins, user roles, or overall WordPress security posture, our team at Freshy is happy to help.
