by Kastro
Paper/Archive/CVE-2025-48827

CVE-2025-48827

vBulletin vBulletin — 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 runn…

EPSS 76%public exploitCVSS 10.0
critical.is priorityof 100
60
CVSS 10.0 (CNA)10.0 / 10 × 3030.0Not in CISA KEV+300.0EPSS percentile 99.5.995 × 2019.9Exploit: SSVC poc+1010.0SSVC exploitation: poc+100.0
Description · from the CVE record

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.

Affected

ProductAffectedFixed inSource
vBulletin5.0.0 – 5.7.5–CNA
vBulletin6.0.0 – 6.0.3–CNA

Scores by source

mitre (CNA)10.0CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
NVD9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CISA ADPSSVCExploitation: poc · Automatable: yes · Technical impact: total

References

refkarmainsecurity.com/dont-call-that-protected-method-vbulletin-rcerefkevintel.com/CVE-2025-48827exploitblog.kevintel.com/vbulletin-replaceadtemplate-kev