CVE-2014-3146

Severity: medium (CVSS 4.3 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 6.3% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2014-05-14 · updated 2026-06-17
Weakness: CWE-79

Description

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: through 3.3.4; 0.5, 0.5.1, 0.6, 0.7, 0.8, 0.9 (+88)

References

http://advisories.mageia.org/MGASA-2014-0218.html
http://lists.opensuse.org/opensuse-updates/2014-05/msg00083.html
http://lxml.de/3.3/changes-3.3.5.html
http://seclists.org/fulldisclosure/2014/Apr/210
http://seclists.org/fulldisclosure/2014/Apr/319
http://secunia.com/advisories/58013
http://secunia.com/advisories/58744
http://secunia.com/advisories/59008
http://www.debian.org/security/2014/dsa-2941
http://www.mandriva.com/security/advisories?name=MDVSA-2015:112
http://www.openwall.com/lists/oss-security/2014/05/09/7
http://www.securityfocus.com/bid/67159

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