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.

References

• https://nvd.nist.gov/vuln/detail/CVE-2014-3146
• 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://www.debian.org/security/2014/dsa-2941
• http://www.openwall.com/lists/oss-security/2014/05/09/7
• http://www.ubuntu.com/usn/USN-2217-1
• lxml/lxml#273
• lxml/lxml@3f3082e
• lxml/lxml@86e81ab
• lxml/lxml@e86b294
• https://web.archive.org/web/20140724172044/http://secunia.com/advisories/58013
• https://web.archive.org/web/20140805110535/http://secunia.com/advisories/59008
• https://web.archive.org/web/20140806061046/http://secunia.com/advisories/58744
• https://web.archive.org/web/20141017122607/https://mailman-mail5.webfaction.com/pipermail/lxml/2014-April/007128.html
• https://web.archive.org/web/20150523055039/http://www.mandriva.com/en/support/security/advisories/advisory/MDVSA-2015:112/?name=MDVSA-2015:112
• https://web.archive.org/web/20200228180542/http://www.securityfocus.com/bid/67159