Search criteria
68 vulnerabilities found for zulip by zulip
CVE-2025-52559 (GCVE-0-2025-52559)
Vulnerability from nvd – Published: 2025-07-02 19:31 – Updated: 2025-07-02 19:37
VLAI?
Title
Zulip XSS in digest preview URL
Summary
Zulip is an open-source team chat application. From versions 2.0.0-rc1 to before 10.4 in Zulip Server, the /digest/ URL of a server shows a preview of what the email weekly digest would contain. This URL, though not the digest itself, contains a cross-site scripting (XSS) vulnerability in both topic names and channel names. This issue has been fixed in Zulip Server 10.4. A workaround for this issue involves denying access to /digest/.
Severity ?
6.8 (Medium)
CWE
- CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Assigner
References
| URL | Tags | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
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CVE-2025-47930 (GCVE-0-2025-47930)
Vulnerability from nvd – Published: 2025-05-15 23:17 – Updated: 2025-05-16 13:19
VLAI?
Title
Zulip Server has access control bypass for restrictions on creation of specific channel types
Summary
Zulip is an open-source team chat application. Starting in version 10.0 and prior to version 10.3, the "Who can create public channels" access control mechanism can be circumvented by creating a private or web-public channel, and then changing the channel privacy to public. A similar technique works for creating private channels without permission, though such a process requires either the API or modifying the HTML, as we do mark the "private" radio button as disabled in such cases. Version 10.3 contains a patch.
Severity ?
CWE
- CWE-863 - Incorrect Authorization
Assigner
References
| URL | Tags | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
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CVE-2025-31478 (GCVE-0-2025-31478)
Vulnerability from nvd – Published: 2025-04-16 21:28 – Updated: 2025-04-17 13:18
VLAI?
Title
Zulip Authentication Backend Configuration Bypass
Summary
Zulip is an open-source team collaboration tool. Zulip supports a configuration where account creation is limited solely by being able to authenticate with a single-sign on authentication backend, meaning the organization places no restrictions on email address domains or invitations being required to join, but has disabled the EmailAuthBackend that is used for email/password authentication. A bug in the Zulip server means that it is possible to create an account in such organizations, without having an account with the configured SSO authentication backend. This issue is patched in version 10.2. A workaround includes requiring invitations to join the organization prevents the vulnerability from being accessed.
Severity ?
8.2 (High)
CWE
- CWE-287 - Improper Authentication
Assigner
References
| URL | Tags | ||||
|---|---|---|---|---|---|
|
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CVE-2025-30369 (GCVE-0-2025-30369)
Vulnerability from nvd – Published: 2025-03-31 16:32 – Updated: 2025-03-31 18:17
VLAI?
Title
Zulip allows the deletion of Custom profile fields by administrators of a different organization
Summary
Zulip is an open-source team collaboration tool. The API for deleting an organization custom profile field is supposed to be restricted to organization administrators, but its handler failed to check that the field belongs to the same organization as the user. Therefore, an administrator of any organization was incorrectly allowed to delete custom profile fields belonging to a different organization. This is fixed in Zulip Server 10.1.
Severity ?
CWE
- CWE-566 - Authorization Bypass Through User-Controlled SQL Primary Key
Assigner
References
| URL | Tags | ||||
|---|---|---|---|---|---|
|
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CVE-2025-30368 (GCVE-0-2025-30368)
Vulnerability from nvd – Published: 2025-03-31 16:26 – Updated: 2025-03-31 18:59
VLAI?
Title
Zulip allows the deletion of organization by administrators of a different organization
Summary
Zulip is an open-source team collaboration tool. The API for deleting an organization export is supposed to be restricted to organization administrators, but its handler failed to check that the field belongs to the same organization as the user. Therefore, an administrator of any organization was incorrectly allowed to delete an export of a different organization. This is fixed in Zulip Server 10.1.
Severity ?
CWE
- CWE-566 - Authorization Bypass Through User-Controlled SQL Primary Key
Assigner
References
| URL | Tags | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
|
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CVE-2025-27149 (GCVE-0-2025-27149)
Vulnerability from nvd – Published: 2025-03-31 15:33 – Updated: 2025-03-31 18:36
VLAI?
Title
Zulip exports can leak private data
Summary
Zulip server provides an open-source team chat that helps teams stay productive and focused. Prior to 10.0, the data export to organization administrators feature in Zulip leaks private data. The collection of user-agent types identifying specific integrations or HTTP libraries (E.g., ZulipGitlabWebhook, okhttp, or PycURL) that have been used to access any organization on the server was incorrectly included in all three export types, regardless of if they were used to access the exported organization or not. The "public data" and "with consent" exports metadata including the titles of some topics in private channels which the administrator otherwise did not have access to, and none of the users consented to exporting and metadata for which users were in a group DM together. This vulnerability is fixed in 10.0.
Severity ?
CWE
- CWE-497 - Exposure of Sensitive System Information to an Unauthorized Control Sphere
Assigner
References
| URL | Tags | ||||
|---|---|---|---|---|---|
|
|||||
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CVE-2025-25195 (GCVE-0-2025-25195)
Vulnerability from nvd – Published: 2025-02-13 21:47 – Updated: 2025-02-14 15:46
VLAI?
Title
Zulip events can leak private channel names
Summary
Zulip is an open source team chat application. A weekly cron job (added in 50256f48314250978f521ef439cafa704e056539) demotes channels to being "inactive" after they have not received traffic for 180 days. However, upon doing so, an event was sent to all users in the organization, not just users in the channel. This event contained the name of the private channel. Similarly, the same commit (50256f48314250978f521ef439cafa704e056539) added functionality to notify clients when channels stopped being "inactive." The first message sent to a private channel which had not previously had any messages for over 180 days (and were thus already marked "inactive") would leak an event to all users in the organization; this event also contained the name of the private channel. Commits 75be449d456d29fef27e9d1828bafa30174284b4 and a2a1a7f8d152296c8966f1380872c0ac69e5c87e fixed the issue. This vulnerability only existed in `main`, and was not part of any published versions.
Severity ?
4.3 (Medium)
CWE
- CWE-200 - Exposure of Sensitive Information to an Unauthorized Actor
Assigner
References
| URL | Tags | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||
Impacted products
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CVE-2024-56136 (GCVE-0-2024-56136)
Vulnerability from nvd – Published: 2025-01-16 19:25 – Updated: 2025-02-06 21:29
VLAI?
Title
/api/v1/jwt/fetch_api_key endpoint can leak if an email address has an account in Zulip server
Summary
Zulip server provides an open-source team chat that helps teams stay productive and focused. Zulip Server 7.0 and above are vulnerable to an information disclose attack, where, if a Zulip server is hosting multiple organizations, an unauthenticated user can make a request and determine if an email address is in use by a user. Zulip Server 9.4 resolves the issue, as does the `main` branch of Zulip Server. Users are advised to upgrade. There are no known workarounds for this issue.
Severity ?
CWE
- CWE-200 - Exposure of Sensitive Information to an Unauthorized Actor
Assigner
References
| URL | Tags | |||||||
|---|---|---|---|---|---|---|---|---|
|
||||||||
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CVE-2024-36624 (GCVE-0-2024-36624)
Vulnerability from nvd – Published: 2024-11-29 00:00 – Updated: 2024-11-29 18:17
VLAI?
Summary
Zulip 8.3 is vulnerable to Cross Site Scripting (XSS) via the construct_copy_div function in copy_and_paste.js.
Severity ?
6.1 (Medium)
CWE
- n/a
Assigner
References
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CVE-2024-36625 (GCVE-0-2024-36625)
Vulnerability from nvd – Published: 2024-11-29 00:00 – Updated: 2024-11-29 17:09
VLAI?
Summary
Zulip 8.3 is vulnerable to Cross Site Scripting (XSS) via the replace_emoji_with_text function in ui_util.ts.
Severity ?
6.1 (Medium)
CWE
- n/a
Assigner
References
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CVE-2024-27286 (GCVE-0-2024-27286)
Vulnerability from nvd – Published: 2024-03-20 19:35 – Updated: 2025-03-31 16:30
VLAI?
Title
Moving single messages from public to private streams leaves them accessible
Summary
Zulip is an open-source team collaboration tool. When a user moves a Zulip message, they have the option to move all messages in the topic, move only subsequent messages as well, or move just a single message. If the user chose to just move one message, and was moving it from a public stream to a private stream, Zulip would successfully move the message, -- but active users who did not have access to the private stream, but whose client had already received the message, would continue to see the message in the public stream until they reloaded their client. Additionally, Zulip did not remove view permissions on the message from recently-active users, allowing the message to show up in the "All messages" view or in search results, but not in "Inbox" or "Recent conversations" views. While the bug has been present since moving messages between streams was first introduced in version 3.0, this option became much more common starting in Zulip 8.0, when the default option in the picker for moving the very last message in a conversation was changed. This issue is fixed in Zulip Server 8.3. No known workarounds are available.
Severity ?
6.5 (Medium)
CWE
- CWE-200 - Exposure of Sensitive Information to an Unauthorized Actor
Assigner
References
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|---|---|---|---|---|---|---|---|---|
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CVE-2024-21630 (GCVE-0-2024-21630)
Vulnerability from nvd – Published: 2024-01-25 19:30 – Updated: 2025-05-29 15:19
VLAI?
Title
Zulip non-admins can invite new users to streams they would not otherwise be able to add existing users to
Summary
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 that the inviter can already see. Version 8.1 fixes this issue. As a workaround, administrators can limit sending of invitations down to users who also have the permission to add users to streams.
Severity ?
4.3 (Medium)
CWE
- CWE-862 - Missing Authorization
Assigner
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|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
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CVE-2023-47642 (GCVE-0-2023-47642)
Vulnerability from nvd – Published: 2023-11-16 21:41 – Updated: 2024-08-29 14:49
VLAI?
Title
Stream description leaks to ex-subscribers in Zulip
Summary
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.
Severity ?
4.3 (Medium)
CWE
- CWE-200 - Exposure of Sensitive Information to an Unauthorized Actor
Assigner
References
| URL | Tags | |||||||
|---|---|---|---|---|---|---|---|---|
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CVE-2023-32678 (GCVE-0-2023-32678)
Vulnerability from nvd – Published: 2023-08-25 20:04 – Updated: 2024-09-30 18:17
VLAI?
Title
Zulip vulnerable to insufficient authorization check for edition/deletion of messages and topics in private streams by former subscribers
Summary
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 will be able to delete old messages (that they had access to) from the private stream. This issue was fixed in Zulip Server version 7.3.
Severity ?
6.5 (Medium)
CWE
- CWE-285 - Improper Authorization
Assigner
References
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|---|---|---|---|---|---|---|---|---|
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CVE-2023-33186 (GCVE-0-2023-33186)
Vulnerability from nvd – Published: 2023-05-30 05:31 – Updated: 2025-01-10 19:47
VLAI?
Title
Cross-site scripting vulnerability in Zulip Server development branch via topic tooltip
Summary
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 topic in their message feed triggers execution of JavaScript code controlled by the attacker.
Severity ?
8.2 (High)
CWE
- CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Assigner
References
| URL | Tags | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
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CVE-2025-52559 (GCVE-0-2025-52559)
Vulnerability from cvelistv5 – Published: 2025-07-02 19:31 – Updated: 2025-07-02 19:37
VLAI?
Title
Zulip XSS in digest preview URL
Summary
Zulip is an open-source team chat application. From versions 2.0.0-rc1 to before 10.4 in Zulip Server, the /digest/ URL of a server shows a preview of what the email weekly digest would contain. This URL, though not the digest itself, contains a cross-site scripting (XSS) vulnerability in both topic names and channel names. This issue has been fixed in Zulip Server 10.4. A workaround for this issue involves denying access to /digest/.
Severity ?
6.8 (Medium)
CWE
- CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Assigner
References
| URL | Tags | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
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CVE-2025-47930 (GCVE-0-2025-47930)
Vulnerability from cvelistv5 – Published: 2025-05-15 23:17 – Updated: 2025-05-16 13:19
VLAI?
Title
Zulip Server has access control bypass for restrictions on creation of specific channel types
Summary
Zulip is an open-source team chat application. Starting in version 10.0 and prior to version 10.3, the "Who can create public channels" access control mechanism can be circumvented by creating a private or web-public channel, and then changing the channel privacy to public. A similar technique works for creating private channels without permission, though such a process requires either the API or modifying the HTML, as we do mark the "private" radio button as disabled in such cases. Version 10.3 contains a patch.
Severity ?
CWE
- CWE-863 - Incorrect Authorization
Assigner
References
| URL | Tags | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
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CVE-2025-31478 (GCVE-0-2025-31478)
Vulnerability from cvelistv5 – Published: 2025-04-16 21:28 – Updated: 2025-04-17 13:18
VLAI?
Title
Zulip Authentication Backend Configuration Bypass
Summary
Zulip is an open-source team collaboration tool. Zulip supports a configuration where account creation is limited solely by being able to authenticate with a single-sign on authentication backend, meaning the organization places no restrictions on email address domains or invitations being required to join, but has disabled the EmailAuthBackend that is used for email/password authentication. A bug in the Zulip server means that it is possible to create an account in such organizations, without having an account with the configured SSO authentication backend. This issue is patched in version 10.2. A workaround includes requiring invitations to join the organization prevents the vulnerability from being accessed.
Severity ?
8.2 (High)
CWE
- CWE-287 - Improper Authentication
Assigner
References
| URL | Tags | ||||
|---|---|---|---|---|---|
|
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CVE-2025-30369 (GCVE-0-2025-30369)
Vulnerability from cvelistv5 – Published: 2025-03-31 16:32 – Updated: 2025-03-31 18:17
VLAI?
Title
Zulip allows the deletion of Custom profile fields by administrators of a different organization
Summary
Zulip is an open-source team collaboration tool. The API for deleting an organization custom profile field is supposed to be restricted to organization administrators, but its handler failed to check that the field belongs to the same organization as the user. Therefore, an administrator of any organization was incorrectly allowed to delete custom profile fields belonging to a different organization. This is fixed in Zulip Server 10.1.
Severity ?
CWE
- CWE-566 - Authorization Bypass Through User-Controlled SQL Primary Key
Assigner
References
| URL | Tags | ||||
|---|---|---|---|---|---|
|
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CVE-2025-30368 (GCVE-0-2025-30368)
Vulnerability from cvelistv5 – Published: 2025-03-31 16:26 – Updated: 2025-03-31 18:59
VLAI?
Title
Zulip allows the deletion of organization by administrators of a different organization
Summary
Zulip is an open-source team collaboration tool. The API for deleting an organization export is supposed to be restricted to organization administrators, but its handler failed to check that the field belongs to the same organization as the user. Therefore, an administrator of any organization was incorrectly allowed to delete an export of a different organization. This is fixed in Zulip Server 10.1.
Severity ?
CWE
- CWE-566 - Authorization Bypass Through User-Controlled SQL Primary Key
Assigner
References
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|---|---|---|---|---|---|---|---|---|---|---|---|
|
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CVE-2025-27149 (GCVE-0-2025-27149)
Vulnerability from cvelistv5 – Published: 2025-03-31 15:33 – Updated: 2025-03-31 18:36
VLAI?
Title
Zulip exports can leak private data
Summary
Zulip server provides an open-source team chat that helps teams stay productive and focused. Prior to 10.0, the data export to organization administrators feature in Zulip leaks private data. The collection of user-agent types identifying specific integrations or HTTP libraries (E.g., ZulipGitlabWebhook, okhttp, or PycURL) that have been used to access any organization on the server was incorrectly included in all three export types, regardless of if they were used to access the exported organization or not. The "public data" and "with consent" exports metadata including the titles of some topics in private channels which the administrator otherwise did not have access to, and none of the users consented to exporting and metadata for which users were in a group DM together. This vulnerability is fixed in 10.0.
Severity ?
CWE
- CWE-497 - Exposure of Sensitive System Information to an Unauthorized Control Sphere
Assigner
References
| URL | Tags | ||||
|---|---|---|---|---|---|
|
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CVE-2025-25195 (GCVE-0-2025-25195)
Vulnerability from cvelistv5 – Published: 2025-02-13 21:47 – Updated: 2025-02-14 15:46
VLAI?
Title
Zulip events can leak private channel names
Summary
Zulip is an open source team chat application. A weekly cron job (added in 50256f48314250978f521ef439cafa704e056539) demotes channels to being "inactive" after they have not received traffic for 180 days. However, upon doing so, an event was sent to all users in the organization, not just users in the channel. This event contained the name of the private channel. Similarly, the same commit (50256f48314250978f521ef439cafa704e056539) added functionality to notify clients when channels stopped being "inactive." The first message sent to a private channel which had not previously had any messages for over 180 days (and were thus already marked "inactive") would leak an event to all users in the organization; this event also contained the name of the private channel. Commits 75be449d456d29fef27e9d1828bafa30174284b4 and a2a1a7f8d152296c8966f1380872c0ac69e5c87e fixed the issue. This vulnerability only existed in `main`, and was not part of any published versions.
Severity ?
4.3 (Medium)
CWE
- CWE-200 - Exposure of Sensitive Information to an Unauthorized Actor
Assigner
References
| URL | Tags | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||
Impacted products
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CVE-2024-56136 (GCVE-0-2024-56136)
Vulnerability from cvelistv5 – Published: 2025-01-16 19:25 – Updated: 2025-02-06 21:29
VLAI?
Title
/api/v1/jwt/fetch_api_key endpoint can leak if an email address has an account in Zulip server
Summary
Zulip server provides an open-source team chat that helps teams stay productive and focused. Zulip Server 7.0 and above are vulnerable to an information disclose attack, where, if a Zulip server is hosting multiple organizations, an unauthenticated user can make a request and determine if an email address is in use by a user. Zulip Server 9.4 resolves the issue, as does the `main` branch of Zulip Server. Users are advised to upgrade. There are no known workarounds for this issue.
Severity ?
CWE
- CWE-200 - Exposure of Sensitive Information to an Unauthorized Actor
Assigner
References
| URL | Tags | |||||||
|---|---|---|---|---|---|---|---|---|
|
||||||||
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CVE-2024-36624 (GCVE-0-2024-36624)
Vulnerability from cvelistv5 – Published: 2024-11-29 00:00 – Updated: 2024-11-29 18:17
VLAI?
Summary
Zulip 8.3 is vulnerable to Cross Site Scripting (XSS) via the construct_copy_div function in copy_and_paste.js.
Severity ?
6.1 (Medium)
CWE
- n/a
Assigner
References
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CVE-2024-36625 (GCVE-0-2024-36625)
Vulnerability from cvelistv5 – Published: 2024-11-29 00:00 – Updated: 2024-11-29 17:09
VLAI?
Summary
Zulip 8.3 is vulnerable to Cross Site Scripting (XSS) via the replace_emoji_with_text function in ui_util.ts.
Severity ?
6.1 (Medium)
CWE
- n/a
Assigner
References
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CVE-2024-27286 (GCVE-0-2024-27286)
Vulnerability from cvelistv5 – Published: 2024-03-20 19:35 – Updated: 2025-03-31 16:30
VLAI?
Title
Moving single messages from public to private streams leaves them accessible
Summary
Zulip is an open-source team collaboration tool. When a user moves a Zulip message, they have the option to move all messages in the topic, move only subsequent messages as well, or move just a single message. If the user chose to just move one message, and was moving it from a public stream to a private stream, Zulip would successfully move the message, -- but active users who did not have access to the private stream, but whose client had already received the message, would continue to see the message in the public stream until they reloaded their client. Additionally, Zulip did not remove view permissions on the message from recently-active users, allowing the message to show up in the "All messages" view or in search results, but not in "Inbox" or "Recent conversations" views. While the bug has been present since moving messages between streams was first introduced in version 3.0, this option became much more common starting in Zulip 8.0, when the default option in the picker for moving the very last message in a conversation was changed. This issue is fixed in Zulip Server 8.3. No known workarounds are available.
Severity ?
6.5 (Medium)
CWE
- CWE-200 - Exposure of Sensitive Information to an Unauthorized Actor
Assigner
References
| URL | Tags | |||||||
|---|---|---|---|---|---|---|---|---|
|
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CVE-2024-21630 (GCVE-0-2024-21630)
Vulnerability from cvelistv5 – Published: 2024-01-25 19:30 – Updated: 2025-05-29 15:19
VLAI?
Title
Zulip non-admins can invite new users to streams they would not otherwise be able to add existing users to
Summary
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 that the inviter can already see. Version 8.1 fixes this issue. As a workaround, administrators can limit sending of invitations down to users who also have the permission to add users to streams.
Severity ?
4.3 (Medium)
CWE
- CWE-862 - Missing Authorization
Assigner
References
| URL | Tags | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||
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CVE-2023-47642 (GCVE-0-2023-47642)
Vulnerability from cvelistv5 – Published: 2023-11-16 21:41 – Updated: 2024-08-29 14:49
VLAI?
Title
Stream description leaks to ex-subscribers in Zulip
Summary
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.
Severity ?
4.3 (Medium)
CWE
- CWE-200 - Exposure of Sensitive Information to an Unauthorized Actor
Assigner
References
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CVE-2023-32678 (GCVE-0-2023-32678)
Vulnerability from cvelistv5 – Published: 2023-08-25 20:04 – Updated: 2024-09-30 18:17
VLAI?
Title
Zulip vulnerable to insufficient authorization check for edition/deletion of messages and topics in private streams by former subscribers
Summary
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 will be able to delete old messages (that they had access to) from the private stream. This issue was fixed in Zulip Server version 7.3.
Severity ?
6.5 (Medium)
CWE
- CWE-285 - Improper Authorization
Assigner
References
| URL | Tags | |||||||
|---|---|---|---|---|---|---|---|---|
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CVE-2023-33186 (GCVE-0-2023-33186)
Vulnerability from cvelistv5 – Published: 2023-05-30 05:31 – Updated: 2025-01-10 19:47
VLAI?
Title
Cross-site scripting vulnerability in Zulip Server development branch via topic tooltip
Summary
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 topic in their message feed triggers execution of JavaScript code controlled by the attacker.
Severity ?
8.2 (High)
CWE
- CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Assigner
References
| URL | Tags | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
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