CVE-2026-15941

Summary

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 Software

VendorProductVersion RangeStatus
RelevanssiRelevanssi Premium – A Better Search0 <= 2.30.2affected
comesioRelevanssi – A Better Search0 <= 4.27.1affected

Weaknesses

  • CWE-89: CWE-89 Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')

ADP Enrichment

CISA ADP Vulnrichment

  • SSVC:
  • Exploitation: none
    • Automatable: no
    • Technical Impact: partial

References