vBulletin

Narrative intelligence for vBulletin: 2 tracked articles, claims, and spin patterns across AI and technology coverage.

vBulletin fixes critical pre-auth RCE flaw with public exploit

vBulletin patched a critical pre-authentication remote code execution flaw that enables attackers to run arbitrary PHP code without logging in, posing immediate risk to thousands of forums.

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BleepingComputer

Jul 29, 2026

SPIN Processed News Frame: none

Public Exploit Released for Patched vBulletin Pre-Auth Code Execution Flaw

A public exploit for a pre-authentication remote code execution vulnerability in vBulletin was released on July 27, enabling unauthenticated attackers to execute arbitrary code on vulnerable forum servers running versions 6.2.1 and earlier or 6.1.6 and earlier.

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The Hacker News

Jul 27, 2026

Related Claims

01 Public exploit details released on July 27 show how an unauthenticated request can reach PHP's eval() function inside vBulletin and execute code on an unpatched forum server.

02 A critical vulnerability in the vBulletin forum software allows unauthenticated attackers to execute arbitrary PHP code through template rendering.

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