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Findings

CVE-2026-6227

The BackWPup plugin for WordPress is vulnerable to Local File Inclusion via the parameter of the REST endpoint in all versions up to, and including, 5.6.6 due to a non…

Published Apr 14, 2026 · updated Jun 17, 2026

The BackWPup plugin for WordPress is vulnerable to Local File Inclusion via the parameter of the REST endpoint in all versions up to, and including, 5.6.6 due to a non-recursive 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 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.

Code

The project this record applies to. Exploit listings stay in References.

Timeline

Detection, updates, and resolution for this record.

  1. Apr 14, 2026 · NIST NVD

    Detected

    The BackWPup plugin for WordPress is vulnerable to Local File Inclusion via the parameter of the REST endpoint in all versions up to, and including, 5.6.6 due to a non-recursive 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., )

  2. Jun 17, 2026 · NIST NVD

    Updated

    The BackWPup plugin for WordPress is vulnerable to Local File Inclusion via the parameter of the REST endpoint in all versions up to, and including, 5.6.6 due to a non-recursive 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., )

Sources

  • CVE.orgVulnerability recordCVE-2026-6227

    Official CVE identifier

    cve.org
  • NIST NVDVulnerability recordCVE-2026-6227

    The BackWPup plugin for WordPress is vulnerable to Local File Inclusion via the parameter of the REST endpoint in all versions up to, and including, 5.6.6 due to a non-recursive sanitization of path traversal sequences.

    nvd.nist.gov

References