Zero-day vulnerability in vBulletin

Security bypass

Known malware:

PHP/Exploit.CVE-2013-6129.A virus.

Vulnerability details

Advisory: SB2013082701 - Security bypass in vBulletin

Vulnerable component: vBulletin

CVE-ID: CVE-2013-6129

CVSSv3 score: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N/E:F/RL:O/RC:C

CWE-ID: CWE-264 - Permissions, Privileges, and Access Controls


The vulnerability allows a remote attacker to bypass security restrictions on the target system.

The weakness exists due to an error in the upgrade.php script. By using the customerid, htmldata[password], htmldata[confirmpassword], and htmldata[email] parameters, a remote attacker can create administrative accounts.

Successful exploitation of the vulnerability results in security bypass on the vulnerable system.

Note: the vulnerability was being actively exploited.

Public Exploits: