CVE-2025-48828

vBulletin versions 5.0.0 through 6.0.3 contain a Remote Code Execution (RCE) flaw in the ajax/api/ad/replaceAdTemplate endpoint caused by improper use of PHP’s Reflection API. An unauthenticated attacker can inject a crafted template (eg, using vb:if with code via passthru($POST[...])) and trigge...

CVE-2025-48828

Certain vBulletin versions might allow attackers to execute arbitrary PHP code by abusing Template Conditionals in the template engine. By crafting template code in an alternative PHP function invocation syntax, such as the "vardump""test" syntax, attackers can bypass security checks and execute...