CVE-2023-25135
CRITICAL 9.8EPSS 23.9%
vBulletin before 5.6.9 PL1 allows an unauthenticated remote attacker to execute arbitrary code via a crafted HTTP request that triggers deserialization. This occurs because verify_serialized checks that a value is serialized by calling unserialize and then checking for errors. The fixed versions are 5.6.7 PL1, 5.6.8 PL1, and 5.6.9 PL1.
- CVSS v3.1
- 9.8 CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - CVSS v3.1
- 9.8 CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - EPSS
- 23.93% chance of exploitation in the next 30 days, 98th percentile
- Nuclei
- critical · CWE-502
- Published
- 2023-02-03
- Updated
- 2025-03-26
Proof-of-concept exploits (2)
- https://www.ambionics.io/blog/vbulletin-unserializable-but-unreachable
- ambionics/vbulletin-exploits75★ · 2023-04-15