What’s Vulnerable › Vulnerabilities

CVE-2016-4566

• Severity: medium (CVSS 6.1 v3.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 6.0% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2016-05-22 · updated 2026-06-17
• Weakness: CWE-79

Description

Cross-site scripting (XSS) vulnerability in plupload.flash.swf in Plupload before 2.1.9, as used in WordPress before 4.5.2, allows remote attackers to inject arbitrary web script or HTML via a Same-Origin Method Execution (SOME) attack.

Affected products

• Plupload: through 2.1.8
• WordPress: through 4.5.1

References

• http://www.openwall.com/lists/oss-security/2016/05/07/2
• http://www.plupload.com/punbb/viewtopic.php?pid=28690
• http://www.securitytracker.com/id/1035818
• https://codex.wordpress.org/Version_4.5.2
• https://core.trac.wordpress.org/changeset/37382/
• https://gist.github.com/cure53/09a81530a44f6b8173f545accc9ed07e
• https://wordpress.org/news/2016/05/wordpress-4-5-2/
• https://wpvulndb.com/vulnerabilities/8489
• http://www.openwall.com/lists/oss-security/2016/05/07/2
• http://www.plupload.com/punbb/viewtopic.php?pid=28690
• http://www.securitytracker.com/id/1035818
• https://codex.wordpress.org/Version_4.5.2

Get alerted when CVE-2016-4566 or the next vulnerability affects your stack