Vulnerability · Published Apr 14, 2026 · Assigned by Wordfence

CVE-2026-6227BackWPup <= 5.6.6 - Authenticated (Administrator+) Local File Inclusion via 'block_name' Parameter

High 7.2

In plain English

A high-severity path traversal in BackWPup – WordPress Backup & Restore Plugin from wp_media. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.3% (higher than 71% of all known vulnerabilities). Ready-made attack tooling exists: public proof-of-concept code.

Severity (CVSS 3.1)7.2High

Exploit odds (30 days)1.3%top 29.2% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack tooling1Public PoC

Official description

The BackWPup plugin for WordPress is vulnerable to Local File Inclusion via the `block_name` parameter of the `/wp-json/backwpup/v1/getblock` REST endpoint in all versions up to, and including, 5.6.6 due to a non-recursive `str_replace()` sanitization of path traversal sequences. This makes it possible for authenticated attackers, with Administrator-level access and above, to include arbitrary PHP files on the server via crafted traversal sequences (e.g., `....//`), which can be leveraged to read sensitive files such as `wp-config.php` or achieve remote code execution in certain configurations. Administrators have the ability to grant individual users permission to handle backups, which may then allow lower-level users to exploit this vulnerability.

Affected products (as reported)

Vendor	Product	Versions
wp_media	BackWPup – WordPress Backup & Restore Plugin	0 – through 5.6.6

Weakness: CWE-22 · Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

In plain English

Official description

Affected products (as reported)

References