Advisory Published
CVE Published
Updated

CVE-2020-15655

First published: Tue Jul 28 2020(Updated: )

A redirected HTTP request which is observed or modified through a web extension could bypass existing CORS checks, leading to potential disclosure of cross-origin information. This vulnerability affects Firefox ESR < 78.1, Firefox < 79, and Thunderbird < 78.1.

Credit: security@mozilla.org security@mozilla.org

Affected SoftwareAffected VersionHow to fix
Mozilla Firefox ESR<78.1
78.1
Mozilla Thunderbird<78.1
78.1
Mozilla Firefox<79
79
Mozilla Firefox<79.0
Mozilla Firefox ESR<78.1
Mozilla Thunderbird<78.1
openSUSE Leap=15.2
Canonical Ubuntu Linux=16.04
Canonical Ubuntu Linux=18.04
Canonical Ubuntu Linux=20.04
debian/firefox
132.0.2-1
debian/thunderbird
1:115.12.0-1~deb11u1
1:128.4.0esr-1~deb11u1
1:115.16.0esr-1~deb12u1
1:128.4.0esr-1~deb12u1
1:128.4.2esr-1
1:128.4.3esr-1

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.

Parent vulnerabilities

(Appears in the following advisories)

Frequently Asked Questions

  • What is the vulnerability ID for this vulnerability?

    The vulnerability ID for this vulnerability is CVE-2020-15655.

  • Who discovered this vulnerability?

    Mozilla Developer Rob Wu discovered this vulnerability.

  • What is the impact of this vulnerability?

    This vulnerability could bypass existing CORS checks, leading to potential disclosure of cross-origin information.

  • Which software products are affected by this vulnerability?

    Firefox ESR 78.1, Thunderbird 78.1, and Firefox 79 are affected by this vulnerability.

  • What is the severity of CVE-2020-15655?

    The severity of CVE-2020-15655 is high (7.0).

  • How can I fix this vulnerability?

    Update Firefox ESR to version 78.1, Thunderbird to version 78.1, or Firefox to version 79 to fix this vulnerability.

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.
© 2024 SecAlerts Pty Ltd.
ABN: 70 645 966 203, ACN: 645 966 203