VULNERABILITY INTELLIGENCE

CVE-2023-25135

CVSS score9.8 CRITICAL

EPSS probability23.93%

CISA KEVNot currently listed

Published2023-02-03

Last modified2026-06-17

CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

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.

Weakness classification

nvd@nist.gov: CWE-502
134c704f-9b21-4f2e-91b3-4a467353bcc0: CWE-502

Primary references

cve@mitre.org — Release Notes, Vendor Advisory
cve@mitre.org — Exploit, Technical Description, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 — Release Notes, Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108 — Exploit, Technical Description, Third Party Advisory