vulnerability
WordPress Plugin: wp-meta-seo: CVE-2023-1381: Deserialization of Untrusted Data
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 9 | (AV:N/AC:L/Au:S/C:C/I:C/A:C) | Mar 27, 2023 | May 15, 2025 | Apr 30, 2026 |
Severity
9
CVSS
(AV:N/AC:L/Au:S/C:C/I:C/A:C)
Published
Mar 27, 2023
Added
May 15, 2025
Modified
Apr 30, 2026
Description
The WP Meta SEO plugin for WordPress is vulnerable to PHP Object Injection in versions up to, and including, 4.5.4 due to insufficient file path validation that makes it possible for attackers to supply paths to files with a phar:// wrapper that will unserialize during retrieval. This makes it possible for authenticated attackers, with author-level permissions and above, to inject a PHP Object. The plugin does contain a useable gadget chain that may make remote execution possible.
Solution
wp-meta-seo-plugin-cve-2023-1381
References
Rapid7 Labs
2026 Global Threat Landscape Report
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