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zulip zulip server vulnerabilities and exploits
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6.1
CVSSv3
CVE-2020-9444
Zulip Server prior to 2.1.3 allows reverse tabnabbing via the Markdown functionality.
Zulip Zulip Server
6.1
CVSSv3
CVE-2020-9445
Zulip Server prior to 2.1.3 allows XSS via the modal_link feature in the Markdown functionality.
Zulip Zulip Server
9.8
CVSSv3
CVE-2022-21706
Zulip is an open-source team collaboration tool with topic-based threading. Zulip Server version 2.0.0 and above are vulnerable to insufficient access control with multi-use invitations. A Zulip Server deployment which hosts multiple organizations is vulnerable to an attack where...
Zulip Zulip Server
9.8
CVSSv3
CVE-2019-18933
In Zulip Server versions from 1.7.0 to prior to 2.0.7, a bug in the new user signup process meant that users who registered their account using social authentication (e.g., GitHub or Google SSO) in an organization that also allows password authentication could have their personal...
Zulip Zulip Server
4.3
CVSSv3
CVE-2017-0881
An error in the implementation of an autosubscribe feature in the check_stream_exists route of the Zulip group chat application server prior to 1.4.3 allowed an authenticated user to subscribe to a private stream that should have required an invitation from an existing member to ...
Zulip Zulip Server
8.8
CVSSv3
CVE-2017-0910
In Zulip Server prior to 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.
Zulip Zulip Server
6.5
CVSSv3
CVE-2019-16215
The Markdown parser in Zulip server prior to 2.0.5 used a regular expression vulnerable to exponential backtracking. A user who is logged into the server could send a crafted message causing the server to spend an effectively arbitrary amount of CPU time and stall the processing ...
Zulip Zulip Server
5.4
CVSSv3
CVE-2019-16216
Zulip server prior to 2.0.5 incompletely validated the MIME types of uploaded files. A user who is logged into the server could upload files of certain types to mount a stored cross-site scripting attack on other logged-in users. On a Zulip server using the default local uploads ...
Zulip Zulip Server
8.8
CVSSv3
CVE-2020-15070
Zulip Server 2.x prior to 2.1.7 allows eval injection if a privileged attacker were able to write directly to the postgres database, and chose to write a crafted custom profile field value.
Zulip Zulip Server
7.5
CVSSv3
CVE-2020-14215
Zulip Server prior to 2.1.5 has Incorrect Access Control because 0198_preregistrationuser_invited_as adds the administrator role to invitations.
Zulip Zulip Server
CVSSv3
CVSSv2
CVSSv3
VMScore
Recommendations:
firmware
CVE-2023-52866
CVE-2024-4367
CVE-2024-1721
CVE-2023-34992
XML injection
CVE-2023-52817
SQL
CVE-2023-52855
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