CVE-2025-4054
Relevanssi <= 4.24.3 (Free) and <= 2.27.4 (Premium) - Unauthenticated Stored Cross-Site Scripting via Search Highlights
CVSS Score
6.1
EPSS Score
0.0%
EPSS Percentile
0th
The Relevanssi – A Better Search plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the highlights functionality in all versions up to, and including, 4.24.3 (Free) and <= 2.27.4 (Premium), due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page via the search results.
| CWE | CWE-79 |
| Vendor | relevanssi |
| Product | relevanssi premium |
| Published | May 7, 2025 |
| Last Updated | Apr 8, 2026 |
Stay Ahead of the Next One
Get instant alerts for relevanssi relevanssi premium
Be the first to know when new medium vulnerabilities affecting relevanssi relevanssi premium are published — delivered to Slack, Telegram or Discord.
Get Free Alerts →
Free · No credit card · 60 sec setup
CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Affected Versions
Relevanssi / Relevanssi Premium
0 ≤ 2.27.4
comesio / Relevanssi – A Better Search
0 ≤ 4.24.3
References
wordfence.com: https://www.wordfence.com/threat-intel/vulnerabilities/id/6f77f10b-f142-4859-a941-0fbde6ef7fdb?source=cve plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/browser/relevanssi/tags/4.24.3/lib/excerpts-highlights.php#L683 plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/browser/relevanssi/tags/4.24.3/lib/excerpts-highlights.php#L508 relevanssi.com: https://www.relevanssi.com/user-manual/installing-relevanssi-and-adjusting-the-settings/ plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/changeset/3283795/
Credits
Jack Taylor