CVE-2023-25135

PoC —

CVSS 3.1

9.8 critical

EPSS

24%p98

Published

Feb 3, 2023 (Feb 3, 2023)

Modified

Jun 17, 2026

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.

Vendors: vbulletin
Products: vbulletin
Weakness: CWE-502
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

NVD CVE.org GitHub PoCs EPSS (23.9%)

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