CVEvulnerability
CVE-2023-25135
9.8 CRITICAL
Official page ↗
- Status
- Modified
- Published
- 2023-02-03
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 9.8 CRITICAL — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- CVSS 3.1 (134c704f-9b21-4f2e-91b3-4a467353bcc0)
- 9.8 CRITICAL — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- Weaknesses
- CWE-502
Description
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.
Affected configurations
• vbulletin vbulletin 5.6.7
• vbulletin vbulletin 5.6.8
• vbulletin vbulletin 5.6.9
Related
Weakness · CWE (1)
- CWE-502 Deserialization of Untrusted Data weakness
References
- https://forum.vbulletin.com/forum/vbulletin-announcements/vbulletin-announcements_aa/4473890-vbulletin-5-6-9-security-patch Release Notes, Vendor Advisory
- https://www.ambionics.io/blog/vbulletin-unserializable-but-unreachable Exploit, Technical Description, Third Party Advisory
- https://forum.vbulletin.com/forum/vbulletin-announcements/vbulletin-announcements_aa/4473890-vbulletin-5-6-9-security-patch Release Notes, Vendor Advisory
- https://www.ambionics.io/blog/vbulletin-unserializable-but-unreachable Exploit, Technical Description, Third Party Advisory