Critical severity · published May 27, 2025
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…
9.8
CVSS
75.6%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)75.6% · higher than 100% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
VB
vBulletin · vBulletin
5.0.0 through 5.7.5; 6.0.0 through 6.0.3 · source: vendor, NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-48827
CVE.org
https://www.cve.org/CVERecord?id=CVE-2025-48827
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/
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