XSS in Plupload

CVE-2016-4566

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.

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.054 (91.8th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2016-4566?
CVE-2016-4566 is a medium-severity vulnerability in Plupload, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2016-05-22.
How severe is CVE-2016-4566?
Medium severity. CVSS v3 base score is 6.1 out of 10.
Is CVE-2016-4566 known to be exploited?
11 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.