Vulnerabilities > Zulip > Medium

DATE CVE VULNERABILITY TITLE RISK
2020-04-20 CVE-2020-9445 Cross-site Scripting vulnerability in Zulip Server
Zulip Server before 2.1.3 allows XSS via the modal_link feature in the Markdown functionality.
network
zulip CWE-79
4.3
2020-04-20 CVE-2020-9444 Improper Restriction of Rendered UI Layers or Frames vulnerability in Zulip Server
Zulip Server before 2.1.3 allows reverse tabnabbing via the Markdown functionality.
network
zulip CWE-1021
5.8
2019-12-18 CVE-2019-19775 Open Redirect vulnerability in Zulip Server
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.
network
zulip CWE-601
5.8
2019-09-18 CVE-2019-16215 Unspecified vulnerability in Zulip Server
The Markdown parser in Zulip server before 2.0.5 used a regular expression vulnerable to exponential backtracking.
network
low complexity
zulip
6.5
2018-04-18 CVE-2018-9990 Cross-site Scripting vulnerability in Zulip Server
In Zulip Server versions before 1.7.2, there was an XSS issue with stream names in topic typeahead.
network
zulip CWE-79
4.3
2018-04-18 CVE-2018-9987 Cross-site Scripting vulnerability in Zulip Server
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.
network
zulip CWE-79
4.3
2018-04-18 CVE-2018-9986 Cross-site Scripting vulnerability in Zulip Server
In Zulip Server versions before 1.7.2, there were XSS issues with the frontend markdown processor.
network
zulip CWE-79
4.3
2017-11-27 CVE-2017-0910 Improper Authentication vulnerability in Zulip Server
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 server create a user account on any other realm.
network
low complexity
zulip CWE-287
4.0
2017-06-02 CVE-2017-0896 Missing Authorization vulnerability in Zulip Server
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 server that allowed an authenticated user to invite other users to join a Zulip organization even if the organization was configured to prevent this.
network
low complexity
zulip CWE-862
6.5
2017-03-28 CVE-2017-0881 Incorrect Authorization vulnerability in Zulip Server
An error in the implementation of an autosubscribe feature in the check_stream_exists route of the Zulip group chat application server before 1.4.3 allowed an authenticated user to subscribe to a private stream that should have required an invitation from an existing member to join.
network
low complexity
zulip CWE-863
4.0