Page and Post Clone <= 6.3 - Authenticated (Contributor+) SQL Injection via 'meta_key' Parameter

Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')
CVE CVE-2026-2893
CVSS Medium (6.5)
Publicly Published March 4, 2026
Last Updated March 5, 2026
Researcher Arthur GRIMAULT
Description

The Page and Post Clone plugin for WordPress is vulnerable to SQL Injection via the 'meta_key' parameter in the content_clone() function in all versions up to, and including, 6.3. This is due to insufficient escaping on the user-supplied meta_key value and insufficient preparation on the existing SQL query. This makes it possible for authenticated attackers, with Contributor-level access and above, to append additional SQL queries into already existing queries that can be used to extract sensitive information from the database. The injection is second-order: the malicious payload is stored as a post meta key and executed when the post is cloned.

References

1 affected software package

Software Type Plugin
Software Slug page-or-post-clone (view on wordpress.org)
Patched? Yes
Affected Version
  • <= 6.3
Patched Version
  • 6.4
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