Zulip Server before 2.1.3 allows XSS via the modal_link feature in the Markdown functionality.
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://blog.zulip.org/2020/04/01/zulip-server-2-1-3-security-release/ | vendor advisory |