CVE-2026-97641
HighCVSS 7.2Exploitation Probability (EPSS)
Low risk14th percentile - higher than 14% of all known CVEs
Summary
The Relevanssi – A Better Search plugin for WordPress is vulnerable to Stored Cross-Site Scripting via Comment Content in all versions up to and including 4.28.3 due to insufficient input sanitization and output escaping. This is only exploitable when the administrator has configured a non-empty value for the "Allowable tags in excerpts" setting.
Risk Assessment
An unauthenticated attacker can inject malicious scripts that execute in the browser of users visiting affected pages, potentially leading to data theft or session hijacking.
Recommendation
Update the Relevanssi plugin to the latest patched version and review the "Allowable tags in excerpts" setting to ensure it does not contain dangerous tags.
Other vulnerabilities in Relevanssi – A Better Search
Original NVD description (English source)
The Relevanssi – A Better Search plugin for WordPress is vulnerable to Stored Cross-Site Scripting via Comment Content in all versions up to, and including, 4.28.3 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. This is only exploitable when the administrator has configured a non-empty value for the "Allowable tags in excerpts" setting, such as the default example value of <p><a><strong>, as the prefix-matching regex must have an allowable tag whose name is a prefix of the injected tag name.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS