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CVE-2014-3146

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Date: May 14, 2014

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.

Language: Python

Severity Score

Related Resources (29)

http://seclists.org/fulldisclosure/2014/Apr/319
http://www.mandriva.com/security/advisories?name=MDVSA-2015:112
https://web.archive.org/web/20140805110535/http://secunia.com/advisories/59008
https://github.com/pypa/advisory-database/tree/main/vulns/lxml/PYSEC-2014-9.yaml
https://github.com/lxml/lxml/pull/273
https://github.com/lxml/lxml/commit/86e81ab393ba14c1be71284675851a3bdce57d69
https://github.com/lxml/lxml
http://secunia.com/advisories/58744
http://lists.opensuse.org/opensuse-updates/2014-05/msg00083.html
https://web.archive.org/web/20200228180542/http://www.securityfocus.com/bid/67159
http://seclists.org/fulldisclosure/2014/Apr/210
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://github.com/lxml/lxml/commit/3f3082e0a67851cde26a48da3d1f4b75d8aa07ec
http://www.ubuntu.com/usn/USN-2217-1
http://advisories.mageia.org/MGASA-2014-0218.html
http://secunia.com/advisories/58013
https://web.archive.org/web/20150523055039/http://www.mandriva.com/en/support/security/advisories/advisory/MDVSA-2015:112/?name=MDVSA-2015:112
https://nvd.nist.gov/vuln/detail/CVE-2014-3146
http://secunia.com/advisories/59008
http://lxml.de/3.3/changes-3.3.5.html
https://mailman-mail5.webfaction.com/pipermail/lxml/2014-April/007128.html
https://github.com/lxml/lxml/commit/e86b294f1f81b899a59925123560ff924a72f1cc
https://web.archive.org/web/20140724172044/http://secunia.com/advisories/58013
https://access.redhat.com/security/cve/CVE-2014-3146
http://www.openwall.com/lists/oss-security/2014/05/09/7
http://www.securityfocus.com/bid/67159
http://www.debian.org/security/2014/dsa-2941
https://www.mend.io/vulnerability-database/CVE-2014-3146

Severity Score

Weakness Type (CWE)

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

CWE-79

Top Fix

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Upgrade Version

Upgrade to version lxml - 3.3.5

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CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): HIGH
Privileges Required (PR): NONE
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): NONE
Integrity (I): LOW
Availability (A): NONE

CVSS v2

Base Score:
Access Vector (AV): NETWORK
Access Complexity (AC): MEDIUM
Authentication (AU): NONE
Confidentiality (C): NONE
Integrity (I): PARTIAL
Availability (A): NONE
Additional information:

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