CVE-2026-86815: Unknown Backwpup

Medium severity, CVSS 5.5. EPSS: 0.4% chance of exploitation in the next 30 days.

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.

Affected products

• Unknown Backwpup: from 5.2.2, before 5.7.5 (fixed in 5.7.5)

Published 2026-09-11. Last modified 2026-09-11.