CVE-2014-3146: Lxml

Medium severity, CVSS 6.1. EPSS: 6.3% chance of exploitation in the next 30 days.

Incomplete blacklist vulnerability in the lxml.html.clean module in lxml before 3.3.5 allows remote attackers to conduct cross-site scripting (XSS) attacks via control characters in the link scheme to the clean_html function.

Affected products

• Lxml Lxml: up to and including 3.3.4; version 0.5 only; version 0.5.1 only; version 0.6 only; version 0.7 only; version 0.8 only; …

Published 2014-05-14. Last modified 2026-06-17.