Access Control Flaw in BackWPup WordPress Plugin Allows Unauthorized Backup Execution
CVE-2026-86815

Currently unrated

Key Information:

Vendor

WordPress

Status
Vendor
CVE Published:
11 September 2026

Badges

๐Ÿ‘พ Exploit Exists๐ŸŸก Public PoC

What is CVE-2026-86815?

The BackWPup WordPress plugin, prior to version 5.7.5, contains an access control vulnerability that inadequately restricts access to multiple REST API endpoints. This flaw allows users with limited roles, assigned by an administrator, to create and execute backup jobs. Consequently, hostile actors can exploit this vulnerability to exfiltrate complete database backups to unauthorized destinations, thereby jeopardizing the security of sensitive data.

Affected Version(s)

BackWPup 5.2.2 < 5.7.5

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

References

Timeline

  • ๐ŸŸก

    Public PoC available

  • ๐Ÿ‘พ

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

Charles Vosburgh
WPScan
.