vBulletin Remote Code Execution Vulnerabilities Exploited in the Wild (CVE-2025-48827 & CVE-2025-48828)

Security researchers at Karma(In)Security discovered two unauthenticated remote code execution vulnerabilities in vBulletin, a popular commercial forum solution. Tracked as CVE-2025-48828, successful exploitation of the vulnerability may allow a remote, unauthenticated attacker to execute arbitrary code, leading to critical data loss and complete system compromise.

vBulletin pre-auth Remote Code Execution Vulnerability

vBulletin is a well-known forum software worldwide. Recently a pre-auth RCE was observed that bypasses CVE-2019-16759, September 2019 vBulletin patch. Security researcher Amir Etemadieh (Zenfox) has discovered this zero day and has published POC in various formats in his blog on 9th Aug,2020. Description The vulnerability exists in the dynamic creation of widgets at ajax/render/widget_tabbedcontainer_tab_panel. … Continue reading “vBulletin pre-auth Remote Code Execution Vulnerability”

Vbulletin remote code execution vulnerability

Summary: vBulletin 5.x are prone to remote code execution vulnerability. (CVE-2019-16759). It can be exploited without authentication and takes control of web hosts. Description: vBulletin is a proprietary Internet forum software package sold by MH Sub I, LLC doing business as vBulletin. It uses PHP and uses a MySQL database server. A pre-authentication remote code … Continue reading “Vbulletin remote code execution vulnerability”