Cyber Resilience

CVE-2025-4396

High

Published: 13 May 2025

Published
13 May 2025
Modified
15 April 2026
KEV Added
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Patch
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CVSS Score v3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
EPSS Score 0.2197 95.9th percentile
Risk Priority 28 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2025-4396 is a high-severity SQL Injection (CWE-89) vulnerability in Wordpress (inferred from references). Its CVSS base score is 7.5 (High).

Operationally, ranked in the top 4.1% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.

Deeper analysis

The Relevanssi – A Better Search plugin for WordPress is vulnerable to time-based SQL injection through the cats and tags query parameters. The flaw affects all versions up to and including 4.24.4 of the free edition and 2.27.5 of the premium edition, stemming from insufficient escaping of user-supplied input and the absence of prepared statements on existing SQL queries in files such as search-tax-query.php and search.php.

Unauthenticated attackers can supply crafted parameters to append malicious SQL to legitimate queries, enabling extraction of sensitive database contents. The vulnerability carries a CVSS 3.1 score of 7.5 with network attack vector, low complexity, and high confidentiality impact.

Public references, including Wordfence threat intelligence and WordPress plugin repository traces, document the affected code paths but do not detail specific patch versions or mitigation steps beyond the general need to address the injection points. The EPSS score reached a peak of 0.2647 on 2026-04-09 before receding to the current value of 0.2197.

EU & UK References

Vulnerability details

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 <= 2.27.5 (Premium) due to insufficient escaping on…

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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.

CWE(s)
CWE-89

Related Threats

No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.

Affected Assets

Wordpress
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inferred from references and description; NVD did not file a CPE for this CVE

Mitigating Controls

Likely Mitigating Controls AI

Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.

CA-8 Penetration Testing
addresses: CWE-89

Penetration testing uses SQL injection payloads against database interfaces, identifying and supporting fixes for SQL injection weaknesses.

SI-10 Information Input Validation
addresses: CWE-89

Validates query inputs to prevent SQL syntax or command manipulation.

References