Zulip Server before 2.1.5 allows reflected XSS via the Dropbox webhook.
Zulip Server before 2.1.5 allows reverse tabnapping via a topic header link.
Zulip Server before 2.1.3 allows reverse tabnabbing via the Markdown functionality.
Zulip Server before 2.1.3 allows XSS via the modal_link feature in the Markdown functionality.
Zulip Server before 2.1.3 allows XSS via a Markdown link, with resultant account takeover.
The image thumbnailing handler in Zulip Server versions 1.9.0 to before 2.0.8 allowed an open redirect that was visible to logged-in users.
In Zulip Server versions from 1.7.0 to before 2.0.7, a bug in the new user signup process meant that users who registered their account using social …
The Markdown parser in Zulip server before 2.0.5 used a regular expression vulnerable to exponential backtracking. A user who is logged into the serv…
Zulip server before 2.0.5 incompletely validated the MIME types of uploaded files. A user who is logged into the server could upload files of certain…
In Zulip Server versions before 1.7.2, there were XSS issues with the frontend markdown processor.
In Zulip Server versions 1.5.x, 1.6.x, and 1.7.x before 1.7.2, there was an XSS issue with muting notifications.
In Zulip Server versions before 1.7.2, there was an XSS issue with stream names in topic typeahead.
In Zulip Server versions before 1.7.2, there was an XSS issue with user uploads and the (default) LOCAL_UPLOADS_DIR storage backend.
In Zulip Server before 1.7.1, on a server with multiple realms, a vulnerability in the invitation system lets an authorized user of one realm on the …
Zulip Server 1.5.1 and below suffer from an error in the implementation of the invite_by_admins_only setting in the Zulip group chat application serv…