In Zimbra Collaboration Suite (ZCS) 8.8.15, the URL at /h/search?action accepts parameters called extra, title, and onload that are partially sanitised and lead to reflected XSS that allows executing arbitrary JavaScript on the victim's machine.
The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.
Link | Tags |
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https://wiki.zimbra.com/wiki/Zimbra_Security_Advisories | vendor advisory |
https://wiki.zimbra.com/wiki/Security_Center | patch vendor advisory |