Filtered by vendor Zulip
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32 CVE
| CVE | Vendors | Products | Updated | CVSS v2 | CVSS v3 |
|---|---|---|---|---|---|
| CVE-2023-47642 | 1 Zulip | 1 Zulip Server | 2023-11-25 | N/A | 4.3 MEDIUM |
| Zulip is an open-source team collaboration tool. It was discovered by the Zulip development team that active users who had previously been subscribed to a stream incorrectly continued being able to use the Zulip API to access metadata for that stream. As a result, users who had been removed from a stream, but still had an account in the organization, could still view metadata for that stream (including the stream name, description, settings, and an email address used to send emails into the stream via the incoming email integration). This potentially allowed users to see changes to a stream’s metadata after they had lost access to the stream. This vulnerability has been addressed in version 7.5 and all users are advised to upgrade. There are no known workarounds for this issue. | |||||
| CVE-2022-31168 | 1 Zulip | 1 Zulip | 2022-07-29 | N/A | 8.8 HIGH |
| Zulip is an open source team chat tool. Due to an incorrect authorization check in Zulip Server 5.4 and earlier, a member of an organization could craft an API call that grants organization administrator privileges to one of their bots. The vulnerability is fixed in Zulip Server 5.5. Members who don’t own any bots, and lack permission to create them, can’t exploit the vulnerability. As a workaround for the vulnerability, an organization administrator can restrict the `Who can create bots` permission to administrators only, and change the ownership of existing bots. | |||||
| CVE-2022-31134 | 1 Zulip | 1 Zulip Server | 2022-07-22 | 4.0 MEDIUM | 4.9 MEDIUM |
| Zulip is an open-source team collaboration tool. Zulip Server versions 2.1.0 above have a user interface tool, accessible only to server owners and server administrators, which provides a way to download a "public data" export. While this export is only accessible to administrators, in many configurations server administrators are not expected to have access to private messages and private streams. However, the "public data" export which administrators could generate contained the attachment contents for all attachments, even those from private messages and streams. Zulip Server version 5.4 contains a patch for this issue. | |||||
| CVE-2021-30487 | 1 Zulip | 1 Zulip Server | 2022-07-12 | 4.0 MEDIUM | 2.7 LOW |
| In the topic moving API in Zulip Server 3.x before 3.4, organization administrators were able to move messages to streams in other organizations hosted by the same Zulip installation. | |||||
| CVE-2021-30477 | 1 Zulip | 1 Zulip Server | 2022-07-12 | 4.0 MEDIUM | 4.3 MEDIUM |
| An issue was discovered in Zulip Server before 3.4. A bug in the implementation of replies to messages sent by outgoing webhooks to private streams meant that an outgoing webhook bot could be used to send messages to private streams that the user was not intended to be able to send messages to. | |||||
| CVE-2021-30478 | 1 Zulip | 1 Zulip Server | 2022-07-12 | 4.0 MEDIUM | 4.3 MEDIUM |
| An issue was discovered in Zulip Server before 3.4. A bug in the implementation of the can_forge_sender permission (previously is_api_super_user) resulted in users with this permission being able to send messages appearing as if sent by a system bot, including to other organizations hosted by the same Zulip installation. | |||||
| CVE-2021-30479 | 1 Zulip | 1 Zulip Server | 2022-07-12 | 5.0 MEDIUM | 5.3 MEDIUM |
| An issue was discovered in Zulip Server before 3.4. A bug in the implementation of the all_public_streams API feature resulted in guest users being able to receive message traffic to public streams that should have been only accessible to members of the organization. | |||||
| CVE-2022-31017 | 1 Zulip | 1 Zulip | 2022-07-07 | 2.1 LOW | 2.6 LOW |
| Zulip is an open-source team collaboration tool. Versions 2.1.0 through and including 5.2 are vulnerable to a logic error. A stream configured as private with protected history, where new subscribers should not be allowed to see messages sent before they were subscribed, when edited causes the server to incorrectly send an API event that includes the edited message to all of the stream’s current subscribers. This API event is ignored by official clients, but can be observed by using a modified client or the browser’s developer tools. This bug will be fixed in Zulip Server 5.3. There are no known workarounds. | |||||
| CVE-2021-41115 | 1 Zulip | 1 Zulip | 2022-05-12 | 4.0 MEDIUM | 6.5 MEDIUM |
| Zulip is an open source team chat server. In affected versions Zulip allows organization administrators on a server to configure "linkifiers" that automatically create links from messages that users send, detected via arbitrary regular expressions. Malicious organization administrators could subject the server to a denial-of-service via regular expression complexity attacks; most simply, by configuring a quadratic-time regular expression in a linkifier, and sending messages that exploited it. A regular expression attempted to parse the user-provided regexes to verify that they were safe from ReDoS -- this was both insufficient, as well as _itself_ subject to ReDoS if the organization administrator entered a sufficiently complex invalid regex. Affected users should [upgrade to the just-released Zulip 4.7](https://zulip.readthedocs.io/en/latest/production/upgrade-or-modify.html#upgrading-to-a-release), or [`main`](https://zulip.readthedocs.io/en/latest/production/upgrade-or-modify.html#upgrading-from-a-git-repository). | |||||
| CVE-2021-3866 | 1 Zulip | 1 Zulip | 2022-02-03 | 3.5 LOW | 5.4 MEDIUM |
| Cross-site Scripting (XSS) - Stored in GitHub repository zulip/zulip more than and including 44f935695d452cc3fb16845a0c6af710438b153d and prior to 3eb2791c3e9695f7d37ffe84e0c2184fae665cb6. | |||||
| CVE-2021-43799 | 1 Zulip | 1 Zulip | 2022-02-02 | 5.0 MEDIUM | 9.8 CRITICAL |
| Zulip is an open-source team collaboration tool. Zulip Server installs RabbitMQ for internal message passing. In versions of Zulip Server prior to 4.9, the initial installation (until first reboot, or restart of RabbitMQ) does not successfully limit the default ports which RabbitMQ opens; this includes port 25672, the RabbitMQ distribution port, which is used as a management port. RabbitMQ's default "cookie" which protects this port is generated using a weak PRNG, which limits the entropy of the password to at most 36 bits; in practicality, the seed for the randomizer is biased, resulting in approximately 20 bits of entropy. If other firewalls (at the OS or network level) do not protect port 25672, a remote attacker can brute-force the 20 bits of entropy in the "cookie" and leverage it for arbitrary execution of code as the rabbitmq user. They can also read all data which is sent through RabbitMQ, which includes all message traffic sent by users. Version 4.9 contains a patch for this vulnerability. As a workaround, ensure that firewalls prevent access to ports 5672 and 25672 from outside the Zulip server. | |||||
| CVE-2021-43791 | 1 Zulip | 1 Zulip | 2021-12-03 | 5.0 MEDIUM | 5.3 MEDIUM |
| Zulip is an open source group chat application that combines real-time chat with threaded conversations. In affected versions expiration dates on the confirmation objects associated with email invitations were not enforced properly in the new account registration flow. A confirmation link takes a user to the check_prereg_key_and_redirect endpoint, before getting redirected to POST to /accounts/register/. The problem was that validation was happening in the check_prereg_key_and_redirect part and not in /accounts/register/ - meaning that one could submit an expired confirmation key and be able to register. The issue is fixed in Zulip 4.8. There are no known workarounds and users are advised to upgrade as soon as possible. | |||||
| CVE-2020-14194 | 1 Zulip | 1 Zulip Server | 2021-07-21 | 5.8 MEDIUM | 5.4 MEDIUM |
| Zulip Server before 2.1.5 allows reverse tabnapping via a topic header link. | |||||
| CVE-2020-10858 | 1 Zulip | 1 Zulip Desktop | 2021-07-21 | 5.0 MEDIUM | 5.3 MEDIUM |
| Zulip Desktop before 5.0.0 allows attackers to perform recording via the webcam and microphone due to a missing permission request handler. | |||||
| CVE-2020-15070 | 1 Zulip | 1 Zulip Server | 2021-07-21 | 6.5 MEDIUM | 8.8 HIGH |
| Zulip Server 2.x before 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. | |||||
| CVE-2020-14215 | 1 Zulip | 1 Zulip Server | 2021-07-21 | 5.0 MEDIUM | 7.5 HIGH |
| Zulip Server before 2.1.5 has Incorrect Access Control because 0198_preregistrationuser_invited_as adds the administrator role to invitations. | |||||
| CVE-2020-10857 | 1 Zulip | 1 Zulip Desktop | 2021-02-08 | 7.5 HIGH | 9.8 CRITICAL |
| Zulip Desktop before 5.0.0 improperly uses shell.openExternal and shell.openItem with untrusted content, leading to remote code execution. | |||||
| CVE-2020-12759 | 1 Zulip | 1 Zulip Server | 2020-08-26 | 4.3 MEDIUM | 6.1 MEDIUM |
| Zulip Server before 2.1.5 allows reflected XSS via the Dropbox webhook. | |||||
| CVE-2019-18933 | 1 Zulip | 1 Zulip Server | 2020-08-24 | 7.5 HIGH | 9.8 CRITICAL |
| 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 authentication (e.g., GitHub or Google SSO) in an organization that also allows password authentication could have their personal API key stolen by an unprivileged attacker, allowing nearly full access to the user's account. | |||||
| CVE-2020-10935 | 1 Zulip | 1 Zulip Server | 2020-04-28 | 3.5 LOW | 5.4 MEDIUM |
| Zulip Server before 2.1.3 allows XSS via a Markdown link, with resultant account takeover. | |||||
| CVE-2020-9444 | 1 Zulip | 1 Zulip Server | 2020-04-28 | 5.8 MEDIUM | 6.1 MEDIUM |
| Zulip Server before 2.1.3 allows reverse tabnabbing via the Markdown functionality. | |||||
| CVE-2020-9445 | 1 Zulip | 1 Zulip Server | 2020-04-27 | 4.3 MEDIUM | 6.1 MEDIUM |
| Zulip Server before 2.1.3 allows XSS via the modal_link feature in the Markdown functionality. | |||||
| CVE-2019-19775 | 1 Zulip | 1 Zulip Server | 2019-12-18 | 5.8 MEDIUM | 6.1 MEDIUM |
| 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. | |||||
| CVE-2017-0910 | 1 Zulip | 1 Zulip Server | 2019-10-09 | 4.0 MEDIUM | 8.8 HIGH |
| 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. | |||||
| CVE-2017-0881 | 1 Zulip | 1 Zulip Server | 2019-10-09 | 4.0 MEDIUM | 4.3 MEDIUM |
| 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. The issue affects all previously released versions of the Zulip server. | |||||
| CVE-2017-0896 | 1 Zulip | 1 Zulip Server | 2019-10-03 | 4.0 MEDIUM | 6.5 MEDIUM |
| 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. | |||||
| CVE-2019-16216 | 1 Zulip | 1 Zulip Server | 2019-09-18 | 3.5 LOW | 5.4 MEDIUM |
| 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 types to mount a stored cross-site scripting attack on other logged-in users. On a Zulip server using the default local uploads backend, the attack is only effective against browsers lacking support for Content-Security-Policy such as Internet Explorer 11. On a Zulip server using the S3 uploads backend, the attack is confined to the origin of the configured S3 uploads hostname and cannot reach the Zulip server itself. | |||||
| CVE-2019-16215 | 1 Zulip | 1 Zulip Server | 2019-09-18 | 4.0 MEDIUM | 6.5 MEDIUM |
| 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 server could send a crafted message causing the server to spend an effectively arbitrary amount of CPU time and stall the processing of future messages. | |||||
| CVE-2018-9990 | 1 Zulip | 1 Zulip Server | 2018-05-21 | 4.3 MEDIUM | 6.1 MEDIUM |
| In Zulip Server versions before 1.7.2, there was an XSS issue with stream names in topic typeahead. | |||||
| CVE-2018-9987 | 1 Zulip | 1 Zulip Server | 2018-05-21 | 4.3 MEDIUM | 6.1 MEDIUM |
| 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. | |||||
| CVE-2018-9999 | 1 Zulip | 1 Zulip Server | 2018-05-17 | 3.5 LOW | 5.4 MEDIUM |
| In Zulip Server versions before 1.7.2, there was an XSS issue with user uploads and the (default) LOCAL_UPLOADS_DIR storage backend. | |||||
| CVE-2018-9986 | 1 Zulip | 1 Zulip Server | 2018-05-17 | 4.3 MEDIUM | 6.1 MEDIUM |
| In Zulip Server versions before 1.7.2, there were XSS issues with the frontend markdown processor. | |||||