7.5
CWE
200
Advisory Published
CVE Published
Updated

CVE-2017-7787: Infoleak

First published: Tue Aug 08 2017(Updated: )

Same-origin policy protections can be bypassed on pages with embedded iframes during page reloads, allowing the iframes to access content on the top level page, leading to information disclosure.

Credit: security@mozilla.org

Affected SoftwareAffected VersionHow to fix
debian/firefox
118.0.2-1
debian/firefox-esr
91.12.0esr-1~deb10u1
115.3.1esr-1~deb10u1
102.15.0esr-1~deb11u1
115.3.1esr-1~deb11u1
102.15.1esr-1~deb12u1
115.3.0esr-1~deb12u1
115.3.0esr-1
Thunderbird<52.3
52.3
Firefox<55
55
Firefox ESR<52.3
52.3
Debian Linux=8.0
Debian Linux=9.0
Red Hat Enterprise Linux=5.0
Red Hat Enterprise Linux=6.0
Red Hat Enterprise Linux=7.0
Red Hat Enterprise Linux Desktop=5.0
Red Hat Enterprise Linux Desktop=6.0
Red Hat Enterprise Linux Desktop=7.0
Red Hat Enterprise Linux Server=5.0
Red Hat Enterprise Linux Server=6.0
Red Hat Enterprise Linux Server=7.0
Red Hat Enterprise Linux Server=7.3
Red Hat Enterprise Linux Server=7.4
Red Hat Enterprise Linux Server=7.3
Red Hat Enterprise Linux Server=7.4
Red Hat Enterprise Linux Server=7.5
Red Hat Enterprise Linux Workstation=5.0
Red Hat Enterprise Linux Workstation=6.0
Red Hat Enterprise Linux Workstation=7.0
Thunderbird<52.3
Firefox<55.0
Firefox ESR<52.3

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Parent vulnerabilities

(Appears in the following advisories)

Frequently Asked Questions

  • What is the severity of CVE-2017-7787?

    CVE-2017-7787 has a moderate severity rating due to its ability to bypass same-origin policy protections.

  • How do I fix CVE-2017-7787?

    To fix CVE-2017-7787, update to the latest versions of affected software such as Firefox or Thunderbird.

  • Which software is affected by CVE-2017-7787?

    CVE-2017-7787 affects Firefox, Firefox ESR, and Thunderbird versions prior to their specified fixes.

  • What does CVE-2017-7787 exploit?

    CVE-2017-7787 exploits vulnerabilities in embedded iframes during page reloads to access top level page content.

  • Is there a workaround for CVE-2017-7787?

    There is no specific workaround for CVE-2017-7787; updating to a patched version is the recommended solution.

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