BackWPup <= 5.6.6 - Authenticated (Administrator+) Local File Inclusion via 'block_name' Parameter
| CVE | CVE-2026-6227 |
|---|---|
| CVSS | 7.2 (High) |
| Publicly Published | April 13, 2026 |
| Last Updated | April 14, 2026 |
| Researcher |
Pixel_DefaultBR
- Think IT
|
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.
References
- plugins.trac.wordpress.org
- plugins.trac.wordpress.org
- plugins.trac.wordpress.org
- plugins.trac.wordpress.org
- plugins.trac.wordpress.org
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Vulnerability Details for BackWPup – WordPress Backup & Restore Plugin
| Software Type | Plugin |
|---|---|
| Software Slug | backwpup (view on wordpress.org) |
| Patched? | Yes |
| Remediation | Update to version 5.6.7, or a newer patched version |
| Affected Version |
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| Patched Version |
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Recent vulnerabilities in BackWPup – WordPress Backup & Restore Plugin
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