CVE-2026-104801: PPOM arbitrary file deletion vulnerability
critical 9.1 published 2026-10-10 · updated 2026-10-13
- Affected versions
- 34.0.10 and older
- Fixed in
- 34.0.11 *
- Latest version
- 34.0.12
- Severity
- Critical · CVSS 9.1
- Active installs
- 20,000+
- Type
- Arbitrary file deletion
* The source does not name a fixed version; this is the first wordpress.org release after the last affected version.
What an attacker needs
- Access: None. No account or login is needed.
CVSS vector (score by Wordfence): CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H
What to do now
- Update PPOM to 34.0.11 or newer (the latest is 34.0.12): Dashboard → Updates, or Plugins → “update now”.
- If you cannot update right away, deactivate it until you can.
- Turn on auto-updates for it: Plugins → “Enable auto-updates” on its row.
- Not sure which version you run? Check your version against every known PPOM issue.
With WP-CLI:
wp plugin get woocommerce-product-addon --field=version. - If you ran an affected version and something looks off (new admin users, spam pages, redirects), run the free scan below.
The advisory
The PPOM – Product Addons & Custom Fields for WooCommerce plugin for WordPress is vulnerable to arbitrary file deletion due to insufficient file path validation in the rename_files function in all versions up to, and including, 34.0.10 This makes it possible for unauthenticated attackers to delete arbitrary files on the server, which can easily lead to remote code execution when the right file is deleted (such as wp-config.php). The relocated file is moved byte-identically into the publicly accessible wp-content/uploads/ppom_files/confirmed/ directory, meaning the attack also results in arbitrary file read for any web-readable file on the server.
References
- NVD CVE-2026-104801 nvd.nist.gov
- Wordfence advisory www.wordfence.com
- Code change (fix) plugins.trac.wordpress.org
- Plugin source plugins.trac.wordpress.org
Related
Ran an affected version? Check your site for signs of a hack
The free scan reads the public side of your site and looks for spam pages, hidden redirects, injected scripts and blacklist entries. No login, no install, about a minute.
Where this data comes from
- CVE record, score and references: NIST National Vulnerability Database (NVD), checked 2026-11-04. This product uses data from the NVD API but is not endorsed or certified by the NVD.
- Versions and install counts: wordpress.org/plugins/woocommerce-product-addon (Plugins API), fetched 2026-11-04.
- The summary, “what an attacker needs” and “what to do” sections are our plain-English reading of the record and the plugin's release history; the quoted description is the record's own text. Spot an error? Email Daniel.