critical
9.3
CWE
264
Advisory Published
Updated

CVE-2012-4210

First published: Wed Nov 21 2012(Updated: )

The Style Inspector in Mozilla Firefox before 17.0 and Firefox ESR 10.x before 10.0.11 does not properly restrict the context of HTML markup and Cascading Style Sheets (CSS) token sequences, which allows user-assisted remote attackers to execute arbitrary JavaScript code with chrome privileges via a crafted stylesheet.

Credit: cve@mitre.org cve@mitre.org

Affected SoftwareAffected VersionHow to fix
Firefox<=16.0.2
Firefox=0.1
Firefox=0.2
Firefox=0.3
Firefox=0.4
Firefox=0.5
Firefox=0.6
Firefox=0.6.1
Firefox=0.7
Firefox=0.7.1
Firefox=0.8
Firefox=0.9
Firefox=0.9-rc
Firefox=0.9.1
Firefox=0.9.2
Firefox=0.9.3
Firefox=0.10
Firefox=0.10.1
Firefox=1.0
Firefox=1.0-preview_release
Firefox=1.0.1
Firefox=1.0.2
Firefox=1.0.3
Firefox=1.0.4
Firefox=1.0.5
Firefox=1.0.6
Firefox=1.0.7
Firefox=1.0.8
Firefox=1.4.1
Firefox=1.5
Firefox=1.5-beta1
Firefox=1.5-beta2
Firefox=1.5.0.1
Firefox=1.5.0.2
Firefox=1.5.0.3
Firefox=1.5.0.4
Firefox=1.5.0.5
Firefox=1.5.0.6
Firefox=1.5.0.7
Firefox=1.5.0.8
Firefox=1.5.0.9
Firefox=1.5.0.10
Firefox=1.5.0.11
Firefox=1.5.0.12
Firefox=1.5.1
Firefox=1.5.2
Firefox=1.5.3
Firefox=1.5.4
Firefox=1.5.5
Firefox=1.5.6
Firefox=1.5.7
Firefox=1.5.8
Firefox=1.8
Firefox=2.0
Firefox=2.0.0.1
Firefox=2.0.0.2
Firefox=2.0.0.3
Firefox=2.0.0.4
Firefox=2.0.0.5
Firefox=2.0.0.6
Firefox=2.0.0.7
Firefox=2.0.0.8
Firefox=2.0.0.9
Firefox=2.0.0.10
Firefox=2.0.0.11
Firefox=2.0.0.12
Firefox=2.0.0.13
Firefox=2.0.0.14
Firefox=2.0.0.15
Firefox=2.0.0.16
Firefox=2.0.0.17
Firefox=2.0.0.18
Firefox=2.0.0.19
Firefox=2.0.0.20
Firefox=3.0
Firefox=3.0.1
Firefox=3.0.2
Firefox=3.0.3
Firefox=3.0.4
Firefox=3.0.5
Firefox=3.0.6
Firefox=3.0.7
Firefox=3.0.8
Firefox=3.0.9
Firefox=3.0.10
Firefox=3.0.11
Firefox=3.0.12
Firefox=3.0.13
Firefox=3.0.14
Firefox=3.0.15
Firefox=3.0.16
Firefox=3.0.17
Firefox=3.5
Firefox=3.5.1
Firefox=3.5.2
Firefox=3.5.3
Firefox=3.5.4
Firefox=3.5.5
Firefox=3.5.6
Firefox=3.5.7
Firefox=3.5.8
Firefox=3.5.9
Firefox=3.5.10
Firefox=3.5.11
Firefox=3.5.12
Firefox=3.5.13
Firefox=3.5.14
Firefox=3.5.15
Firefox=3.6
Firefox=3.6.2
Firefox=3.6.3
Firefox=3.6.4
Firefox=3.6.6
Firefox=3.6.7
Firefox=3.6.8
Firefox=3.6.9
Firefox=3.6.10
Firefox=3.6.11
Firefox=3.6.12
Firefox=3.6.13
Firefox=3.6.14
Firefox=3.6.15
Firefox=3.6.16
Firefox=3.6.17
Firefox=3.6.18
Firefox=3.6.19
Firefox=3.6.20
Firefox=3.6.21
Firefox=3.6.22
Firefox=3.6.23
Firefox=3.6.24
Firefox=3.6.25
Firefox=4.0
Firefox=4.0-beta1
Firefox=4.0-beta10
Firefox=4.0-beta11
Firefox=4.0-beta12
Firefox=4.0-beta2
Firefox=4.0-beta3
Firefox=4.0-beta4
Firefox=4.0-beta5
Firefox=4.0-beta6
Firefox=4.0-beta7
Firefox=4.0-beta8
Firefox=4.0-beta9
Firefox=4.0.1
Firefox=5.0
Firefox=5.0.1
Firefox=6.0
Firefox=6.0.1
Firefox=6.0.2
Firefox=7.0
Firefox=7.0.1
Firefox=8.0
Firefox=8.0.1
Firefox=9.0
Firefox=9.0.1
Firefox=10.0
Firefox=10.0.1
Firefox=10.0.2
Firefox=11.0
Firefox=12.0
Firefox=12.0-beta6
Firefox=13.0
Firefox=13.0.1
Firefox=14.0
Firefox=14.0.1
Firefox=15.0
Firefox=15.0.1
Firefox=16.0
Firefox=16.0.1
Firefox=10.0.3
Firefox=10.0.4
Firefox=10.0.5
Firefox=10.0.6
Firefox=10.0.7
Firefox=10.0.8
Firefox=10.0.9
Firefox=10.0.10
Firefox ESR=10.0
Firefox ESR=10.0.1
Firefox ESR=10.0.2
Firefox ESR=10.0.3
Firefox ESR=10.0.4
Firefox ESR=10.0.5
Firefox ESR=10.0.6
Firefox ESR=10.0.7
Firefox ESR=10.0.8
Firefox ESR=10.0.9
Firefox ESR=10.0.10

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

Frequently Asked Questions

  • What are the risks associated with CVE-2012-4210?

    CVE-2012-4210 allows remote attackers to execute arbitrary JavaScript code with elevated privileges in affected versions of Mozilla Firefox.

  • Which versions of Mozilla Firefox are affected by CVE-2012-4210?

    CVE-2012-4210 affects Mozilla Firefox versions prior to 17.0 and Firefox ESR versions prior to 10.0.11.

  • How can I mitigate the risks of CVE-2012-4210?

    To mitigate CVE-2012-4210, upgrade to Mozilla Firefox version 17.0 or later, or Firefox ESR version 10.0.11 or later.

  • Is there a workaround for CVE-2012-4210 if I cannot update immediately?

    Disabling JavaScript in Firefox may temporarily mitigate the risks associated with CVE-2012-4210.

  • What is the impact of an exploit of CVE-2012-4210?

    Exploiting CVE-2012-4210 can lead to arbitrary code execution, allowing an attacker to gain control over the affected system.

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