CVE-2026-15941 | BDVDB-2026-355354 Detail
RelevanssiRelevanssi Premium – A Better Search
Description#
The plugin provides an Admin Search page that allows users with the `edit_posts` capability to run Relevanssi searches from the WordPress dashboard. The AJAX handler accepts a URL-encoded `args` parameter, parses it into a `WP_Query`, and then passes user-controlled taxonomy query data into Relevanssi's taxonomy restriction builder. The taxonomy value is sanitized as text but is not parameterized for SQL before being interpolated into a term taxonomy lookup query. This allows an authenticated contributor-level attacker to inject SQL through the Admin Search AJAX request and execute time-based blind SQL injection against the WordPress database.
Impact#
Per CVSS v3.1: confidentiality impact high, integrity impact none, availability impact none. Attack vector: network.
Weaknesses#
- CWE-89 Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')
References#
- https://www.wordfence.com/threat-intel/vulnerabilities/id/4f96b87a-1405-4cf6-b903-ad0c7c8e2826?source=cve
- https://plugins.trac.wordpress.org/browser/relevanssi/tags/4.27.1/lib/search-tax-query.php#L411
- https://plugins.trac.wordpress.org/browser/relevanssi/tags/4.27.1/lib/admin-ajax.php#L195
- https://plugins.trac.wordpress.org/browser/relevanssi/tags/4.27.1/lib/search.php#L969
Exploit#
No public exploit known
History#
- Version 1Record published in the CVE List.