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{"cveTags": [], "descriptions": [{"lang": "en", "value": "The Relevanssi \u2013 A Better Search plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the highlights functionality in all versions up to, and including, 4.24.3 (Free) and <= 2.27.4 (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 via the search results."}, {"lang": "es", "value": "El complemento Relevanssi \u2013 A Better Search para WordPress es vulnerable a Cross-Site Scripting almacenado a trav\u00e9s de la funci\u00f3n de resaltados en todas las versiones hasta la 4.24.3 incluida, debido a una depuraci\u00f3n de entrada y un escape de salida insuficientes. Esto permite a atacantes no autenticados inyectar scripts web arbitrarias en p\u00e1ginas que se ejecutar\u00e1n cada vez que un usuario acceda a una p\u00e1gina inyectada a trav\u00e9s de los resultados de b\u00fasqueda."}], "id": "CVE-2025-4054", "lastModified": "2026-04-15T00:35:42.020", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 6.1, "baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "privilegesRequired": "NONE", "scope": "CHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 2.7, "source": "security@wordfence.com", "type": "Secondary"}]}, "published": "2025-05-07T03:15:18.880", "references": [{"source": "security@wordfence.com", "url": "https://plugins.trac.wordpress.org/browser/relevanssi/tags/4.24.3/lib/excerpts-highlights.php#L508"}, {"source": "security@wordfence.com", "url": "https://plugins.trac.wordpress.org/browser/relevanssi/tags/4.24.3/lib/excerpts-highlights.php#L683"}, {"source": "security@wordfence.com", "url": "https://plugins.trac.wordpress.org/changeset/3283795/"}, {"source": "security@wordfence.com", "url": "https://www.relevanssi.com/user-manual/installing-relevanssi-and-adjusting-the-settings/"}, {"source": "security@wordfence.com", "url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/6f77f10b-f142-4859-a941-0fbde6ef7fdb?source=cve"}], "sourceIdentifier": "security@wordfence.com", "vulnStatus": "Deferred", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-79"}], "source": "security@wordfence.com", "type": "Secondary"}]}

{}

{"analysis": {"en": {"generated_at": "2026-04-22T01:34:57.490895+00:00", "value": {"mitigation_remediation": ["Upgrade Relevanssi to the latest release (free to version 4.24.4 or newer, premium to version 2.27.5 or newer).", "If an upgrade cannot be performed immediately, disable the highlights functionality in the plugin\u2019s settings to remove the injection vector.", "Keep WordPress core and all plugins updated to their latest secure versions, and consider deploying a web application firewall to block suspicious payloads."], "summary": {"action": "Immediate Patch", "impact": "Stored Cross\u2011Site Scripting (XSS)"}, "threat_synthesis": {"affected_systems": "WordPress sites running Relevanssi \u2013 A Better Search, both the free and premium editions, up to and including version 4.24.3 for the free edition and version 2.27.4 for the premium edition. These versions are distributed through the WordPress Plugin Repository and the official Relevanssi website.", "description_and_impact": "The Relevanssi \u2013 A Better Search plugin for WordPress is vulnerable to stored cross\u2011site scripting because the highlights feature does not properly sanitize or escape user input. Arbitrary scripts injected by unauthenticated attackers are persisted in the search result content and are executed in the browser context of any visitor who views a page containing the highlighted content. This flaw allows attackers to deface sites, steal user credentials, or deliver malware.", "risk_and_exploitability": "The CVSS score of 6.1 indicates moderate severity, and the EPSS score of less than 1% suggests a low likelihood of exploitation in the wild. The attack vector is remote, web\u2011based, and requires no authentication; this inference is based on the description of stored scripts executing when users access search results. While the vulnerability is not listed in the CISA KEV catalog, the ability for any visitor to trigger the payload keeps the risk significant for affected sites."}}}}, "created": "2026-04-22T01:45:05.620241+00:00", "updated": "2026-04-22T01:45:05.620252+00:00", "vendors": []}