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Cross-site Scripting (XSS) Affecting firefox-esr package, versions <45.3.0esr-1~deb8u1

Severity

 Recommended
0.0
medium
0
10

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Threat Intelligence

EPSS
0.26% (66th percentile)

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  • Snyk IDSNYK-DEBIAN8-FIREFOXESR-354483
  • published5 Aug 2016
  • disclosed5 Aug 2016
Report a new vulnerability Found a mistake?

Introduced: 5 Aug 2016

CVE-2016-5262  (opens in a new tab)
CWE-79  (opens in a new tab)

How to fix?

Upgrade Debian:8 firefox-esr to version 45.3.0esr-1~deb8u1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream firefox-esr package and not the firefox-esr package as distributed by Debian. See How to fix? for Debian:8 relevant fixed versions and status.

Mozilla Firefox before 48.0 and Firefox ESR 45.x before 45.3 process JavaScript event-handler attributes of a MARQUEE element within a sandboxed IFRAME element that lacks the sandbox="allow-scripts" attribute value, which makes it easier for remote attackers to conduct cross-site scripting (XSS) attacks via a crafted web site.