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Description

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.

PUBLISHED Reserved 2025-05-27 | Published 2025-05-27 | Updated 2025-05-27 | Assigner mitre




CRITICAL: 10.0CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

Problem types

CWE-424 Improper Protection of Alternate Path

Product status

Default status
unknown

5.0.0 (custom)
affected

6.0.0 (custom)
affected

References

blog.kevintel.com/vbulletin-replaceadtemplate-kev/ exploit

karmainsecurity.com/...l-that-protected-method-vbulletin-rce

kevintel.com/CVE-2025-48827

cve.org (CVE-2025-48827)

nvd.nist.gov (CVE-2025-48827)

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