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Cross-site Scripting (XSS) Affecting firefox package, versions <59.0-1

0.0
medium

Snyk CVSS

    Attack Complexity Low
    User Interaction Required
    Scope Changed

    Threat Intelligence

    EPSS 0.22% (60th percentile)
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NVD
6.1 medium

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  • Snyk ID SNYK-DEBIANUNSTABLE-FIREFOX-425171
  • published 11 Jun 2018
  • disclosed 11 Jun 2018
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Introduced: 11 Jun 2018

CVE-2018-5143 Open this link in a new tab
CWE-79 Open this link in a new tab

How to fix?

Upgrade Debian:unstable firefox to version 59.0-1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream firefox package and not the firefox package as distributed by Debian. See How to fix? for Debian:unstable relevant fixed versions and status.

URLs using "javascript:" have the protocol removed when pasted into the addressbar to protect users from cross-site scripting (XSS) attacks, but if a tab character is embedded in the "javascript:" URL the protocol is not removed and the script will execute. This could allow users to be socially engineered to run an XSS attack against themselves. This vulnerability affects Firefox < 59.