8.2

CVE-2023-33186

Cross-site scripting vulnerability in Zulip Server development branch via topic tooltip

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.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Zulip ≫ Zulip Server Version7.0 Updatebeta1
Zulip ≫ Zulip Server Version7.0 Updatebeta2
Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.62% 0.448
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
NIST 6.1 2.8 2.7
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
security-advisories@github.com 8.2 2.3 5.3
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:L/A:L
CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.

https://github.com/zulip/zulip/commit/03cfb3d9fe61c975d133121ec31a7357f0c9e18f
https://github.com/zulip/zulip/commit/3ca131743b00f42bad8edbac4ef92656d954c629
Patch
https://github.com/zulip/zulip/pull/25370
Patch
Issue Tracking
https://github.com/zulip/zulip/security/advisories/GHSA-4r83-8f94-hrph
Vendor Advisory