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.
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | wordpress | 4.2+dfsg-1 | — |
| Debian 13 | wordpress | 4.2+dfsg-1 | — |
| Debian 12 | wordpress | 4.2+dfsg-1 | — |
| Debian 8 | wordpress | 4.1+dfsg-1+deb8u1 | DSA-3250-1 |
| Debian 7 | wordpress | 3.6.1+dfsg-1~deb7u6 | DSA-3250-1 |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 6.0 | wordpress | 3.6.1+dfsg-1~deb6u6 | DLA-236-1 |
Advisories 2
- DLA-236-1 wordpress - security update Debian Security (DSA / DLA) · Mar 9, 2026
- DSA-3250-1 wordpress - security update Debian Security (DSA / DLA) · Mar 9, 2026
References
- http://zoczus.blogspot.com/2015/04/plupload-same-origin-method-execution.html
- FEDORA-2015-6778 vendor-advisory
- https://wordpress.org/news/2015/04/wordpress-4-1-2/
- https://wpvulndb.com/vulnerabilities/7933
- 74269 vdb-entry
- FEDORA-2015-6790 vendor-advisory
- 1032207 vdb-entry
- https://core.trac.wordpress.org/changeset/32168
- DSA-3250 vendor-advisory
- http://codex.wordpress.org/Version_4.1.2
- FEDORA-2015-6808 vendor-advisory