CVE-2026-86815 Missing authorization in BackWPup
Attackers with limited plugin roles can exfiltrate full database backups via unrestricted REST API routes in BackWPup.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-86815?
CVE-2026-86815 is a medium-severity missing authorization vulnerability in Unknown BackWPup, published on 11 Sep 2026. An attacker needs administrator access to exploit it, with no action from the victim.
Official description
The BackWPup WordPress plugin before 5.7.5 does not properly restrict access to several of its REST API routes for job, backup-destination, and backup-execution management, allowing users holding a BackWPup WordPress plugin before 5.7.5-defined, administrator-assigned limited role to create and run backup jobs and exfiltrate a full database backup to an attacker-controlled destination.
Weakness: CWE-862
Which versions are affected by CVE-2026-86815?
How do I fix CVE-2026-86815?
No fix has been published for CVE-2026-86815 yet. Limit exposure of the affected software until one is available.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2026-86815 being exploited?
There is no known exploitation of CVE-2026-86815 in the wild and no public exploit code.
Sources
Also known as GHSA-qr55-6j78-v53m.