eZ Publish Cross-Site Scripting Vulnerability
Purplemet Lab team discovered a cross-site scripting (XSS) vulnerability in eZ Publish 5.4. This version embeds an outdated third party component named VideoJS (version 3.2.0) which provides video-js.swf, a Flash file vulnerable to a cross-site scripting. The vulnerable component is bundled in eZ Publish extensions DemoBundle, ezdemo and ezdemo-ls-extension.
Update to DemoBundle v22.214.171.124, ezdemo v126.96.36.199, ezdemo-ls-extension v188.8.131.52 or latest version.
Proof of concept
The vulnerability can be triggered using the following URL:
See EZSA-2020-003 security advisory.
Purplemet technology detection
Purplemet detects eZ Publish and VideoJS with version.