Legacy vBulletin 4.x Patch Backfires: RCE via Signed Base64 Payloads and a Full PoC Deserialization Exploit php PHP Object Injection PoC rce security vBulletin Vulnerability Legacy vBulletin 4.x Patch Backfires: RCE via Signed Base64 Payloads and a Full PoC jasabacklink June 7, 2025 The post Legacy vBulletin 4.x Patch Backfires: RCE via Signed Base64 Payloads and a Full PoC appeared... Read More Read more about Legacy vBulletin 4.x Patch Backfires: RCE via Signed Base64 Payloads and a Full PoC