CVE-2008-2019: Simple Machines Smf

High severity, CVSS 7.5. EPSS: 4.1% chance of exploitation in the next 30 days.

Simple Machines Forum (SMF), probably 1.1.4, relies on "randomly generated static" to hinder brute-force attacks on the WAV file (aka audio) CAPTCHA, which allows remote attackers to pass the CAPTCHA test via an automated attack that considers Hamming distances. NOTE: this issue reportedly exists because of an insufficient fix for CVE-2007-3308.

Affected products

• Simple Machines Smf: version 1.1.4 only

Published 2008-04-30. Last modified 2026-06-16.