CVE-2025-48827

high-risk
Published 2025-05-27

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.

Do I need to act?

!
77.6% chance of exploitation in next 30 days
EPSS score — higher than 22% of all CVEs
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
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Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
10
CVSS 10.0/10 Critical
NETWORK / LOW complexity

Affected Products (1)

Affected Vendors

Vbulletin

References (3)

Exploit https://karmainsecurity.com/dont-call-that-protected-method-vbulletin-rce
Third Party Advisory https://kevintel.com/CVE-2025-48827
Broken Link https://blog.kevintel.com/vbulletin-replaceadtemplate-kev/
58
/ 100
high-risk
Severity 33/34 · Critical
Exploitability 20/34 · Moderate
Exposure 5/34 · Minimal