Vulnerabilities

CVSS

10.0 Critical

Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

Risk score

80.0

Published

2025-05-27

Status

Published

vBulletin 5.0.0 through 5.7.5 and 6.0.0 through 6.0.3 allows unauthenticated users to invoke protected API controllers' methods when running on PHP 8.1 or later, as demonstrated by the /api.php?method=protectedMethod pattern, as exploited in the wild in May 2025.

Weaknesses

CWE-424

Coverage 1

vulnerability

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

A public exploit for a remote code execution vulnerability in vBulletin has been released, targeting versions 6.2.1 and earlier, and 6.1.6 and earlier. The vulnerability allows unauthenticated code execution, but the exp…

The Hacker News · Jul 27, 2026 High

CVE-2026-61511CVE-2025-48827CVE-2025-48828rcevbulletinremote-code-execution

All articles mentioning it

Advisories and references

• karmainsecurity.com/dont-call-that-protected-method-vbulletin-rce
• kevintel.com/CVE-2025-48827
• blog.kevintel.com/vbulletin-replaceadtemplate-kev/