Vulnerability · Published May 7, 2025 · Assigned by Wordfence
CVE-2025-4054Relevanssi <= 4.24.3 (Free) and <= 2.27.4 (Premium) - Unauthenticated Stored Cross-Site Scripting via Search Highlights
Medium 6.1
In plain English
A medium-severity cross-site scripting in Relevanssi – A Better Search from comesio. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 35% of all known vulnerabilities).
Official description
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.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Relevanssi | Relevanssi Premium | 0 – through 2.27.4 |
| comesio | Relevanssi – A Better Search | 0 – through 4.24.3 |
Weakness: CWE-79 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
References
- https://www.wordfence.com/threat-intel/vulnerabilities/id/6f77f10b-f142-4859-a941-0fbde6ef7fdb?source=cve
- https://plugins.trac.wordpress.org/browser/relevanssi/tags/4.24.3/lib/excerpts-highlights.php#L683
- https://plugins.trac.wordpress.org/browser/relevanssi/tags/4.24.3/lib/excerpts-highlights.php#L508
- https://www.relevanssi.com/user-manual/installing-relevanssi-and-adjusting-the-settings/
- https://plugins.trac.wordpress.org/changeset/3283795/