CVE-2015-3439

Severity: medium (CVSS 4.3 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 5.1% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2015-08-05 · updated 2026-06-17
Weakness: CWE-79

Description

Cross-site scripting (XSS) vulnerability in the Ephox (formerly Moxiecode) plupload.flash.swf shim 2.1.2 in Plupload, as used in WordPress 3.9.x, 4.0.x, and 4.1.x before 4.1.2 and other products, allows remote attackers to execute same-origin JavaScript functions via the target parameter, as demonstrated by executing a certain click function, related to _init.as and _fireEvent.as.

Affected products

Debian Linux: 7.0, 8.0
WordPress: 3.9.0, 3.9.1, 3.9.2, 3.9.3, 4.0, 4.0.1 (+2)

References

http://codex.wordpress.org/Version_4.1.2
http://lists.fedoraproject.org/pipermail/package-announce/2015-May/157391.html
http://lists.fedoraproject.org/pipermail/package-announce/2015-May/158271.html
http://lists.fedoraproject.org/pipermail/package-announce/2015-May/158278.html
http://www.debian.org/security/2015/dsa-3250
http://www.securityfocus.com/bid/74269
http://www.securitytracker.com/id/1032207
http://zoczus.blogspot.com/2015/04/plupload-same-origin-method-execution.html
https://core.trac.wordpress.org/changeset/32168
https://wordpress.org/news/2015/04/wordpress-4-1-2/
https://wpvulndb.com/vulnerabilities/7933
http://codex.wordpress.org/Version_4.1.2

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