CVE-2025-48827

What it is

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.

At a glance

Exploitability

Can be exploited over the network without logging in. High risk of data exposure, data tampering, service disruption.

Exploit odds

75.6% chance of exploitation in the next 30 days (EPSS). Higher than most.

Fix

No patch or advisory is linked yet. Look at mitigations or restrict exposure.

Timeline

1. 2025-05-27 00:00 UTC ReservedThe CVE id was reserved by its CNA
2. 2025-05-27 04:15 UTC PublishedDisclosed publicly on CVE.org and NVD
3. 2026-06-17 09:30 UTC Last updatedMost recent change to the record

Details

Published

2025-05-27 04:15 UTC

Last modified

2026-06-17 09:30 UTC

Exploit probability

75.6% · EPSS, next 30 days

Weakness

CWE-424

Record status

Analyzed

Affected

• Vbulletin ≤ 5.7.5
• Vbulletin ≤ 6.0.3

Attack profile CVSS 3.1 · 10.0

Attack vector

Network

Complexity

Low

Privileges needed

None

User interaction

None

Scope

Changed

Confidentiality

High

Integrity

High

Availability

High