ZDF
Sign inSign up

Vulnerabilities

Vulnerability · CVE-2025-5016

relevanssi relevanssi Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Published May 31, 2025 · catalog updated Oct 13, 2026 · Relevanssi Premium

Patch now

CVE-2025-5016 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
Medium4.7
Known exploitation
CISA KEV and VulnCheck KEV
EPSS
0.22%
Remediation
Remediation guidance
Affected products
vendor comesio Relevanssi Premium 0 ≤2.27.6 · vendor relevanssi relevanssi

The Relevanssi – A Better Search plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the Excerpt Highlights in all versions up to, and including, 4.24.5 (Free) and 2.27.6 (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.

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 ≤2.27.60 ≤2.27.6
  • vendor relevanssi relevanssiversion unspecified

How to fix CVE-2025-5016

What to do

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

Should you patch?

CVE-2025-5016 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 ≤2.27.6 0 ≤2.27.6. 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 0.22%. 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. Oct 13, 2026 · VulnCheck KEV

    Detected

    The Relevanssi – A Better Search plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the Excerpt Highlights in all versions up to, and including, 4.24.5 (Free) and 2.27.6 (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 i

  2. Oct 13, 2026 · CISA KEV

    Known exploited

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

Sources

  • CVE.orgVulnerability recordCVE-2025-5016

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2025-5016

    30-day exploitation probability 0.2%

    first.org
  • EUVDVulnerability recordEUVD-2025-16540

    The Relevanssi – A Better Search plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the Excerpt Highlights in all versions up to, and including, 4.24.5 (Free) and 2.27.6 (Premium) due to insufficient input sanitization and output escaping. This makes it possibl

    euvd.enisa.europa.eu
  • VulnCheck KEVConfirmed exploitationCVE-2025-5016

    The Relevanssi – A Better Search plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the Excerpt Highlights in all versions up to, and including, 4.24.5 (Free) and 2.27.6 (Premium) due to insufficient input sanitization and output escaping. This makes it possibl

    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.