CVE-2012-5223: Crawlability Vbseo

High severity, CVSS 7.5. EPSS: 40.5% chance of exploitation in the next 30 days.

The proc_deutf function in includes/functions_vbseocp_abstract.php in vBSEO 3.5.0, 3.5.1, 3.5.2, 3.6.0, and earlier allows remote attackers to insert and execute arbitrary PHP code via "complex curly syntax" in the char_repl parameter, which is inserted into a regular expression that is processed by the preg_replace function with the eval switch.

Affected products

• Crawlability Vbseo: up to and including 3.6.0; version 2.0.0 only; version 2.1.0 only; version 2.1.1 only; version 2.2.0 only; version 2.3.0 only; …

Published 2012-10-01. Last modified 2026-06-16.