CVE-2023-33186
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.
Does this matter?
Lower severity and a low EPSS score (0.62%). Track it; it rarely justifies an emergency change on its own.
Description
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.
- CVSS 3.1
- 6.1 MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
- EPSS
- 0.62% probability · 48th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-79
- Affected
- zulip/zulip server
- Source
- security-advisories@github.com
References
- https://github.com/zulip/zulip/commit/03cfb3d9fe61c975d133121ec31a7357f0c9e18f
- https://github.com/zulip/zulip/commit/3ca131743b00f42bad8edbac4ef92656d954c629Patch
- https://github.com/zulip/zulip/pull/25370Issue Tracking, Patch
- https://github.com/zulip/zulip/security/advisories/GHSA-4r83-8f94-hrphVendor Advisory
- https://github.com/zulip/zulip/commit/03cfb3d9fe61c975d133121ec31a7357f0c9e18f
- https://github.com/zulip/zulip/commit/3ca131743b00f42bad8edbac4ef92656d954c629Patch
- https://github.com/zulip/zulip/pull/25370Issue Tracking, Patch
- https://github.com/zulip/zulip/security/advisories/GHSA-4r83-8f94-hrphVendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.