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 in the wild in May 2025.

Affected

vBulletin

CVSS v3.1 NVD

9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS v3.1 MITRE

10.0 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

EPSS

75.84% chance of exploitation in the next 30 days, 100th percentile

Nuclei

critical · CWE-424

Published

2025-05-27

Proof-of-concept exploits (4)

• https://karmainsecurity.com/dont-call-that-protected-method-vbulletin-rce
• 0xgh057r3c0n/CVE-2025-4882711★ · 2025-05-29
• wiseep/CVE-2025-488270★ · 2025-05-31
• sh4den/CVE-2025-488271★ · 2026-06-23

Nuclei templates (1)

• projectdiscovery/nuclei-templates/blob/main/http/cves/2025/CVE-2025-48827.yaml

Metasploit modules (1)

• rapid7/metasploit-framework/blob/master/modules/exploits/multi/http/vbulletin_replace_ad_…

Security advisories

• https://kevintel.com/CVE-2025-48827

References

• CVE Record
• NVD entry

Related

• CVE-2025-13486
• CVE-2025-25257
• CVE-2025-2775
• CVE-2025-2776
• CVE-2025-2777
• CVE-2025-3102