CVE-2016-5262

Name: CVE-2016-5262
Creator: NVD / NIST
Published: 2016-08-05T01:59:18.207+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 1.48%

Last modified Jun 17, 2026

CVE-2016-5262 is a vulnerability of currently unknown severity. 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.. EPSS estimates a 1.48% chance of exploitation in the next 30 days.

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.

Metrics

EPSS Probability

1.48%

70.5th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-79

Affected Software

Vendor	Product	Versions
Mozilla	Firefox	<= 47.0.1
Mozilla	Firefox	45.1.0
Mozilla	Firefox	45.1.1
Mozilla	Firefox	45.2.0
Mozilla	Firefox	45.3.0
Oracle	Linux	5.0
Oracle	Linux	6
Oracle	Linux	7

References

Timeline

Published: Aug 5, 2016
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2016-5262?

How severe is CVE-2016-5262?

Severity scoring for CVE-2016-5262 is pending analysis. The EPSS model estimates a 1.48% probability of exploitation in the next 30 days.

How do I fix CVE-2016-5262?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2016-5262?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST