CVSS: 4.3EPSS: 0%CPEs: 2EXPL: 0CVE-2024-21630 – Zulip non-admins can invite new users to streams they would not otherwise be able to add existing users to
https://notcve.org/view.php?id=CVE-2024-21630
25 Jan 2024 — Zulip is an open-source team collaboration tool. A vulnerability in version 8.0 is similar to CVE-2023-32677, but applies to multi-use invitations, not single-use invitation links as in the prior CVE. Specifically, it applies when the installation has configured non-admins to be able to invite users and create multi-use invitations, and has also configured only admins to be able to invite users to streams. As in CVE-2023-32677, this does not let users invite new users to arbitrary streams, only to streams t... • https://github.com/zulip/zulip/commit/0df7bd71f32f3b772e2646c6ab0d60c9b610addf • CWE-862: Missing Authorization •
CVSS: 4.3EPSS: 0%CPEs: 1EXPL: 0CVE-2023-47642 – Stream description leaks to ex-subscribers in Zulip
https://notcve.org/view.php?id=CVE-2023-47642
16 Nov 2023 — 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 i... • https://github.com/zulip/zulip/commit/6336322d2f9bbccaacfc80cba83a3c62eefd5737 • CWE-200: Exposure of Sensitive Information to an Unauthorized Actor •
CVSS: 6.8EPSS: 0%CPEs: 1EXPL: 0CVE-2023-32678 – Zulip vulnerable to insufficient authorization check for edition/deletion of messages and topics in private streams by former subscribers
https://notcve.org/view.php?id=CVE-2023-32678
25 Aug 2023 — Zulip is an open-source team collaboration tool with topic-based threading that combines email and chat. Users who used to be subscribed to a private stream and have been removed from it since retain the ability to edit messages/topics, move messages to other streams, and delete messages that they used to have access to, if other relevant organization permissions allow these actions. For example, a user may be able to edit or delete their old messages they posted in such a private stream. An administrator w... • https://github.com/zulip/zulip/security/advisories/GHSA-q3wg-jm9p-35fj • CWE-285: Improper Authorization •
CVSS: 8.2EPSS: 0%CPEs: 2EXPL: 0CVE-2023-33186 – Cross-site scripting vulnerability in Zulip Server development branch via topic tooltip
https://notcve.org/view.php?id=CVE-2023-33186
30 May 2023 — Zulip is an open-source team collaboration tool with unique topic-based threading that combines the best of email and chat to make remote work productive and delightful. The main development branch of Zulip Server from May 2, 2023 and later, including beta versions 7.0-beta1 and 7.0-beta2, is vulnerable to a cross-site scripting vulnerability in tooltips on the message feed. An attacker who can send messages could maliciously craft a topic for the message, such that a victim who hovers the tooltip for that ... • https://github.com/zulip/zulip/commit/03cfb3d9fe61c975d133121ec31a7357f0c9e18f • CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') •
CVSS: 5.5EPSS: 0%CPEs: 1EXPL: 0CVE-2023-22735 – User uploads proxied from S3 lack `Content-Security-Policy` headers, may be served with `Content-Disposition: inline` in zulip
https://notcve.org/view.php?id=CVE-2023-22735
07 Feb 2023 — Zulip is an open-source team collaboration tool. In versions of zulip prior to commit `2f6c5a8` but after commit `04cf68b` users could upload files with arbitrary `Content-Type` which would be served from the Zulip hostname with `Content-Disposition: inline` and no `Content-Security-Policy` header, allowing them to trick other users into executing arbitrary Javascript in the context of the Zulip application. Among other things, this enables session theft. Only deployments which use the S3 storage (not the l... • https://github.com/zulip/zulip/commit/04cf68b45ebb5c03247a0d6453e35ffc175d55da • CWE-436: Interpretation Conflict •
CVSS: 3.7EPSS: 0%CPEs: 1EXPL: 0CVE-2022-41914 – Non-constant-time SCIM token comparison in Zulip Server
https://notcve.org/view.php?id=CVE-2022-41914
16 Nov 2022 — Zulip is an open-source team collaboration tool. For organizations with System for Cross-domain Identity Management(SCIM) account management enabled, Zulip Server 5.0 through 5.6 checked the SCIM bearer token using a comparator that did not run in constant time. Therefore, it might theoretically be possible for an attacker to infer the value of the token by performing a sophisticated timing analysis on a large number of failing requests. If successful, this would allow the attacker to impersonate the SCIM c... • https://github.com/zulip/zulip/commit/59edbfa4113d140d3e20126bc65f4d67b2a8ffe5 • CWE-200: Exposure of Sensitive Information to an Unauthorized Actor CWE-203: Observable Discrepancy •
CVSS: 4.9EPSS: 0%CPEs: 1EXPL: 0CVE-2022-31134 – Zulip Server public data export contains attachments that are non-public
https://notcve.org/view.php?id=CVE-2022-31134
12 Jul 2022 — 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 al... • https://blog.zulip.com/2022/07/12/zulip-cloud-data-exports • CWE-200: Exposure of Sensitive Information to an Unauthorized Actor CWE-434: Unrestricted Upload of File with Dangerous Type •
CVSS: 5.4EPSS: 0%CPEs: 1EXPL: 0CVE-2022-23656 – Cross-site scripting vulnerability in Zulip Server
https://notcve.org/view.php?id=CVE-2022-23656
02 Mar 2022 — Zulip is an open source team chat app. The `main` development branch of Zulip Server from June 2021 and later is vulnerable to a cross-site scripting vulnerability on the recent topics page. An attacker could maliciously craft a full name for their account and send messages to a topic with several participants; a victim who then opens an overflow tooltip including this full name on the recent topics page could trigger execution of JavaScript code controlled by the attacker. Users running a Zulip server from... • https://github.com/zulip/zulip/commit/e090027adcbf62737d5b1f83a9618a9500a49321 • CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') •
CVSS: 9.8EPSS: 0%CPEs: 1EXPL: 0CVE-2022-21706 – Multi-use invitations can grant access to other organizations in Zulip
https://notcve.org/view.php?id=CVE-2022-21706
25 Feb 2022 — 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 an invitation created in one organization (potentially as a role with elevated permissions) can be used to join any other organization. This bypasses any restrictions on required domains on users' email addresses, may be used to ga... • https://blog.zulip.com/2022/02/25/zulip-cloud-invitation-vulnerability • CWE-284: Improper Access Control CWE-863: Incorrect Authorization •
CVSS: 5.3EPSS: 0%CPEs: 1EXPL: 0CVE-2021-30479
https://notcve.org/view.php?id=CVE-2021-30479
14 Apr 2021 — 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. Se detectó un problema en Zulip Server versiones anteriores a 3.4. Un bug en la implementación de la funcionalidad API all_public_streams resultó en que usuarios invitados pudieran recibir tráfico de mensajes a transmisiones públicas que s... • https://blog.zulip.com/2021/04/14/zulip-server-3-4 • CWE-269: Improper Privilege Management •