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Vulnerabilities and Security Researches

Relevanssi – A Better Search, CVE-2026-15941

CVE, Research URL

CVE-2026-15941

Published on
Aug 05, 2026
Research 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.
Affected versions
max 4.27.2.
Status
vulnerable