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CVE-2025-52559

MEDIUM 6.8

Our Analysis: General-Purpose

Our model has classified this vulnerability as relevant to General-Purpose Systems, helping your team prioritize efforts effectively.

Published Date July 2, 2025
Last Modified July 3, 2025
CVSS Vector CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:N/A:N

Description

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/.