CVE-2016-5262
Mozilla: Scripts on marquee tag can execute in sandboxed iframes (MFSA 2016-76)
Severity
ModerateRed Hat Product Security
CVSS 3.0
Review impact separately from score.
Published · August 2, 2016
Updated · November 21, 2025
Description
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.
CVSS score applicability
The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.
Mitigation
No mitigation is specified in collected source.
CVSS / CWE
CVSS 3.0 · 6.1CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
CVSS 2.0 · 4.3AV:N/AC:M/Au:N/C:N/I:P/A:N
CWE not specified