CVE-2016-4567

Name: CVE-2016-4567
Creator: NVD / NIST
Published: 2016-05-22T01:59:31.23+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 6.40%

Last modified Jun 17, 2026

CVE-2016-4567 is a vulnerability of currently unknown severity. Cross-site scripting (XSS) vulnerability in flash/FlashMediaElement.as in MediaElement.js before 2.21.0, as used in WordPress before 4.5.2, allows remote attackers to inject arbitrary web script or HTML via an obfuscated form of the jsinitfunction parameter, as demonstrated by "jsinitfunctio%gn.". EPSS estimates a 6.40% chance of exploitation in the next 30 days.

Description

Cross-site scripting (XSS) vulnerability in flash/FlashMediaElement.as in MediaElement.js before 2.21.0, as used in WordPress before 4.5.2, allows remote attackers to inject arbitrary web script or HTML via an obfuscated form of the jsinitfunction parameter, as demonstrated by "jsinitfunctio%gn."

Metrics

EPSS Probability

6.40%

92.8th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-79

Affected Software

Vendor	Product	Versions
Mediaelementjs	Mediaelement.Js	<= 2.20.1
Wordpress	Wordpress	<= 4.5.1

References

http://www.openwall.com/lists/oss-security/2016/05/07/2
http://www.securitytracker.com/id/1035818Third Party Advisory, VDB Entry
https://codex.wordpress.org/Version_4.5.2Patch, Vendor Advisory
https://core.trac.wordpress.org/changeset/37371Patch
https://gist.github.com/cure53/df34ea68c26441f3ae98f821ba1feb9cThird Party Advisory
https://github.com/johndyer/mediaelement/blob/master/changelog.mdPatch, Vendor Advisory
https://github.com/johndyer/mediaelement/commit/34834eef8ac830b9145df169ec22016a4350f06ePatch, Vendor Advisory
https://wordpress.org/news/2016/05/wordpress-4-5-2/Patch, Vendor Advisory
https://wpvulndb.com/vulnerabilities/8488Third Party Advisory
http://www.openwall.com/lists/oss-security/2016/05/07/2
http://www.securitytracker.com/id/1035818Third Party Advisory, VDB Entry
https://codex.wordpress.org/Version_4.5.2Patch, Vendor Advisory
https://core.trac.wordpress.org/changeset/37371Patch
https://gist.github.com/cure53/df34ea68c26441f3ae98f821ba1feb9cThird Party Advisory
https://github.com/johndyer/mediaelement/blob/master/changelog.mdPatch, Vendor Advisory
https://github.com/johndyer/mediaelement/commit/34834eef8ac830b9145df169ec22016a4350f06ePatch, Vendor Advisory
https://wordpress.org/news/2016/05/wordpress-4-5-2/Patch, Vendor Advisory
https://wpvulndb.com/vulnerabilities/8488Third Party Advisory

Timeline

Published: May 22, 2016
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2016-4567?

How severe is CVE-2016-4567?

Severity scoring for CVE-2016-4567 is pending analysis. The EPSS model estimates a 6.40% probability of exploitation in the next 30 days.

How do I fix CVE-2016-4567?

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-2016-4567?

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

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Source: NVD / NIST