CVE-2025-48827

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.

Scoring

Severity

CRITICAL

CVSS base score

10

CVSS vector

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

EPSS probability

75.84%

CWE

CWE-424

Published

2025-05-27

Last modified

2026-03-13

Affected products

• vBulletin vBulletin
• vBulletin vBulletin

Weakness type

• CWE-424

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