Quick answers
- Is CVE-2026-39468 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-39468 being exploited in the wild.
- How severe is CVE-2026-39468?
- Medium severity, with a CVSS score of 6.8, published 15 June 2026.
- Which products and versions are affected?
- eLightUp Meta Box – WordPress Custom Fields Framework <= 5.11.1.
- Is there a fix for CVE-2026-39468?
- A patch was published on 2026-04-13: Version 5.11.2 released to address the issue Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
- How is CVE-2026-39468 attacked?
- It is attacked over the network, in a software library.
- Am I affected by CVE-2026-39468?
- Check whether you run eLightUp Meta Box – WordPress Custom Fields Framework at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.
Technical details
The Meta Box plugin for WordPress (versions up to and including 5.11.1) is vulnerable to arbitrary file deletion. This issue stems from a path traversal vulnerability (CWE-22) where the application fails to properly sanitize user-supplied input used to identify files for deletion. An attacker with Contributor-level privileges can exploit this to delete sensitive files outside of the intended directory, such as wp-config.php or .htaccess, potentially leading to a Denial of Service (DoS) or site takeover. The vulnerability is addressed in version 5.11.2.
Affected products
- eLightUp Meta Box – WordPress Custom Fields Framework <= 5.11.1
Timeline
- 2026-01-27: other: Vulnerability reported by Nguyen Ba Khanh
- 2026-04-13: advisory: Initial advisory published by Patchstack
- 2026-04-13: patched: Version 5.11.2 released to address the issue
- 2026-06-15: disclosed: CVE published to NVD