medium
6.1
CWE
79
Advisory Published
Advisory Published
Updated

CVE-2014-3146: XSS

First published: Wed May 14 2014(Updated: )

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.

Credit: secalert@redhat.com

Affected SoftwareAffected VersionHow to fix
pip/lxml<3.3.5
3.3.5
lxml<=3.3.4
lxml=0.5
lxml=0.5.1
lxml=0.6
lxml=0.7
lxml=0.8
lxml=0.9
lxml=0.9.1
lxml=0.9.2
lxml=1.0
lxml=1.0.1
lxml=1.0.2
lxml=1.0.3
lxml=1.0.4
lxml=1.1
lxml=1.1.1
lxml=1.1.2
lxml=1.2
lxml=1.2.1
lxml=1.3
lxml=1.3.1
lxml=1.3.2
lxml=1.3.3
lxml=1.3.4
lxml=1.3.5
lxml=1.3.6
lxml=2.0
lxml=2.0.1
lxml=2.0.2
lxml=2.0.3
lxml=2.0.4
lxml=2.0.5
lxml=2.0.6
lxml=2.0.7
lxml=2.0.8
lxml=2.0.9
lxml=2.0.10
lxml=2.0.11
lxml=2.1-alpha1
lxml=2.1-beta1
lxml=2.1-beta2
lxml=2.1-beta3
lxml=2.1.1
lxml=2.1.2
lxml=2.1.3
lxml=2.1.4
lxml=2.2
lxml=2.2-alpha1
lxml=2.2-beta1
lxml=2.2-beta2
lxml=2.2-beta3
lxml=2.2-beta4
lxml=2.2.1
lxml=2.2.2
lxml=2.2.3
lxml=2.2.4
lxml=2.2.5
lxml=2.2.6
lxml=2.2.7
lxml=2.2.8
lxml=2.3
lxml=2.3-alpha1
lxml=2.3-alpha2
lxml=2.3-beta1
lxml=2.3.1
lxml=2.3.2
lxml=2.3.3
lxml=2.3.4
lxml=2.3.5
lxml=2.3.6
lxml=3.0
lxml=3.0-alpha1
lxml=3.0-alpha2
lxml=3.0-beta1
lxml=3.0.1
lxml=3.0.2
lxml=3.1-beta1
lxml=3.1.0
lxml=3.1.1
lxml=3.1.2
lxml=3.2.0
lxml=3.2.1
lxml=3.2.2
lxml=3.2.3
lxml=3.2.4
lxml=3.2.5
lxml=3.3.0
lxml=3.3.0-beta1
lxml=3.3.0-beta2
lxml=3.3.0-beta3
lxml=3.3.0-beta4
lxml=3.3.0-beta5
lxml=3.3.1
lxml=3.3.2
lxml=3.3.3
IBM Security QRadar<=7.5 - 7.5.0 UP8 IF01
<=3.3.4
=0.5
=0.5.1
=0.6
=0.7
=0.8
=0.9
=0.9.1
=0.9.2
=1.0
=1.0.1
=1.0.2
=1.0.3
=1.0.4
=1.1
=1.1.1
=1.1.2
=1.2
=1.2.1
=1.3
=1.3.1
=1.3.2
=1.3.3
=1.3.4
=1.3.5
=1.3.6
=2.0
=2.0.1
=2.0.2
=2.0.3
=2.0.4
=2.0.5
=2.0.6
=2.0.7
=2.0.8
=2.0.9
=2.0.10
=2.0.11
=2.1-alpha1
=2.1-beta1
=2.1-beta2
=2.1-beta3
=2.1.1
=2.1.2
=2.1.3
=2.1.4
=2.2
=2.2-alpha1
=2.2-beta1
=2.2-beta2
=2.2-beta3
=2.2-beta4
=2.2.1
=2.2.2
=2.2.3
=2.2.4
=2.2.5
=2.2.6
=2.2.7
=2.2.8
=2.3
=2.3-alpha1
=2.3-alpha2
=2.3-beta1
=2.3.1
=2.3.2
=2.3.3
=2.3.4
=2.3.5
=2.3.6
=3.0
=3.0-alpha1
=3.0-alpha2
=3.0-beta1
=3.0.1
=3.0.2
=3.1-beta1
=3.1.0
=3.1.1
=3.1.2
=3.2.0
=3.2.1
=3.2.2
=3.2.3
=3.2.4
=3.2.5
=3.3.0
=3.3.0-beta1
=3.3.0-beta2
=3.3.0-beta3
=3.3.0-beta4
=3.3.0-beta5
=3.3.1
=3.3.2
=3.3.3

Never miss a vulnerability like this again

Sign up to SecAlerts for real-time vulnerability data matched to your software, aggregated from hundreds of sources.

Read MoreStart Free Trial

Reference Links

Parent vulnerabilities

(Appears in the following advisories)

Frequently Asked Questions

  • What is the severity of CVE-2014-3146?

    CVE-2014-3146 is considered a moderate severity vulnerability as it allows for cross-site scripting (XSS) attacks.

  • How do I fix CVE-2014-3146?

    To fix CVE-2014-3146, upgrade lxml to version 3.3.5 or higher.

  • What specific feature in lxml is affected by CVE-2014-3146?

    CVE-2014-3146 affects the `lxml.html.clean` module, which has an incomplete blacklist.

  • Which software versions are impacted by CVE-2014-3146?

    Versions of lxml prior to 3.3.5, including all releases up to 3.3.4, are impacted by CVE-2014-3146.

  • Can CVE-2014-3146 lead to data theft?

    Yes, CVE-2014-3146 can allow attackers to execute arbitrary scripts in the user's browser, potentially leading to data theft.

Company

Resources

Contact

SecAlerts Pty Ltd.
132 Wickham Terrace
Fortitude Valley,
QLD 4006, Australia
info@secalerts.co
By using SecAlerts services, you agree to our services end-user license agreement. This website is safeguarded by reCAPTCHA and governed by the Google Privacy Policy and Terms of Service. All names, logos, and brands of products are owned by their respective owners, and any usage of these names, logos, and brands for identification purposes only does not imply endorsement. If you possess any content that requires removal, please get in touch with us.
© 2025 SecAlerts Pty Ltd.
ABN: 70 645 966 203, ACN: 645 966 203