What is CVE-2025-48827?

CVE-2025-48827 is a critical-severity vulnerability in Vbulletin, classified under CWE-424. CVSS score: 10.0/10. Published 2025-05-27.

How severe is CVE-2025-48827?

Critical severity. CVSS v3 base score is 10.0 out of 10.

Is CVE-2025-48827 known to be exploited?

15 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Vulnerability in Vbulletin

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…

EPSS: 0.776 (99.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 10.0 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H.

Affected products

Vbulletin — versions 5.0.0, 6.0.0

Weakness classification (CWE)

CWE-424

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2025-48827?: CVE-2025-48827 is a critical-severity vulnerability in Vbulletin, classified under CWE-424. CVSS score: 10.0/10. Published 2025-05-27.
How severe is CVE-2025-48827?: Critical severity. CVSS v3 base score is 10.0 out of 10.
Is CVE-2025-48827 known to be exploited?: 15 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.