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Vulnerabilities

Vulnerability · CVE-2025-4396

relevanssi relevanssi Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')

Published May 13, 2025 · catalog updated Apr 8, 2026 · Relevanssi Premium

Patch now

CVE-2025-4396 is in the CISA known-exploited catalog. Confirm Relevanssi Premium against the vendor advisory and apply that fix. The CVSS score does not change the priority.

Severity
High7.5
Known exploitation
CISA KEV and VulnCheck KEV
EPSS
2.70%
Remediation
Remediation guidance
Affected products
vendor comesio Relevanssi Premium 0 ≤2.27.5 · vendor relevanssi relevanssi

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 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.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • vendor comesio Relevanssi Premium 0 ≤2.27.50 ≤2.27.5
  • vendor relevanssi relevanssiversion unspecified

How to fix CVE-2025-4396

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

CVE-2025-4396 is in the CISA known-exploited catalog. Confirm Relevanssi Premium against the vendor advisory and apply that fix. The CVSS score does not change the priority.

Which versions are affected?

Compare what you have installed with comesio Relevanssi Premium 0 ≤2.27.5 0 ≤2.27.5. Apply remediations or mitigations per vendor instructions or discontinue use of the product if remediation or mitigations are unavailable.

What should an analyst verify?

No weakness class is stored. EPSS 2.70%. The CISA KEV listing is the exploitation evidence. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Technology hubs

WordPress security

Code

The project this record applies to. Exploit listings stay in References.

Timeline

Detection, updates, and resolution for this record.

  1. Feb 2, 2026 · VulnCheck KEV

    Detected

    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 the user supplied parameter and lack of sufficient preparation on the existing SQL query. This makes it possible for unauthenticated attackers to append addi

  2. Feb 2, 2026 · CISA KEV

    Known exploited

    Apply remediations or mitigations per vendor instructions or discontinue use of the product if remediation or mitigations are unavailable.

  3. Apr 8, 2026 · EUVD

    Updated

    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 the user supplied parameter and lack of sufficient preparation on the existing SQL query. This makes it possible for unauthenticated attackers to append addi

Sources

  • CVE.orgVulnerability recordCVE-2025-4396

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2025-4396

    30-day exploitation probability 2.7%

    first.org
  • EUVDVulnerability recordEUVD-2025-14360

    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 the user supplied parameter and lack

    euvd.enisa.europa.eu
  • VulnCheck KEVConfirmed exploitationCVE-2025-4396

    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 the user supplied parameter and lack

    vulncheck.com

References

Freshness

Last verified in this catalog Oct 18, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.