{"resultsPerPage":1,"startIndex":0,"totalResults":1,"format":"NVD_CVE","version":"2.0","timestamp":"2026-04-21T14:13:39.855","vulnerabilities":[{"cve":{"id":"CVE-2026-1490","sourceIdentifier":"security@wordfence.com","published":"2026-02-15T04:15:53.783","lastModified":"2026-04-15T00:35:42.020","vulnStatus":"Deferred","cveTags":[],"descriptions":[{"lang":"en","value":"The Spam protection, Anti-Spam, FireWall by CleanTalk plugin for WordPress is vulnerable to unauthorized Arbitrary Plugin Installation due to an authorization bypass via reverse DNS (PTR record) spoofing on the 'checkWithoutToken' function in all versions up to, and including, 6.71. This makes it possible for unauthenticated attackers to install and activate arbitrary plugins which can be leveraged to achieve remote code execution if another vulnerable plugin is installed and activated. Note: This is only exploitable on sites with an invalid API key."},{"lang":"es","value":"El plugin de protección contra el correo no deseado, Antispam, Cortafuegos de CleanTalk para WordPress es vulnerable a la instalación arbitraria de plugins no autorizada debido a una omisión de autorización mediante suplantación de DNS inverso (registro PTR) en la función 'checkWithoutToken' en todas las versiones hasta la 6.71, inclusive. Esto permite a atacantes no autenticados instalar y activar plugins arbitrarios, lo que puede aprovecharse para lograr la ejecución remota de código si otro plugin vulnerable está instalado y activado. Nota: Esto solo es explotable en sitios con una clave API no válida."}],"metrics":{"cvssMetricV31":[{"source":"security@wordfence.com","type":"Secondary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","baseScore":9.8,"baseSeverity":"CRITICAL","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"HIGH"},"exploitabilityScore":3.9,"impactScore":5.9}]},"weaknesses":[{"source":"security@wordfence.com","type":"Secondary","description":[{"lang":"en","value":"CWE-350"}]}],"references":[{"url":"https://plugins.trac.wordpress.org/browser/cleantalk-spam-protect/trunk/lib/Cleantalk/ApbctWP/RemoteCalls.php#L69","source":"security@wordfence.com"},{"url":"https://plugins.trac.wordpress.org/browser/cleantalk-spam-protect/trunk/lib/Cleantalk/Common/Helper.php#L64","source":"security@wordfence.com"},{"url":"https://plugins.trac.wordpress.org/changeset/3454488/cleantalk-spam-protect#file473","source":"security@wordfence.com"},{"url":"https://www.wordfence.com/threat-intel/vulnerabilities/id/cb603be6-4a12-49e1-b8cc-b2062eb97f16?source=cve","source":"security@wordfence.com"}]}}]}