CVE-2025-52559

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/.

CVSS v3 6.8 MEDIUM

6.8^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.3 / Impact : 4.0

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction REQUIRED

Confidentiality Impact HIGH

Integrity Impact NONE

Availability Impact NONE

Scope CHANGED

References

Link	Resource
https://github.com/zulip/zulip/commit/175ec1f365b0db982d6eac9019701cbf6e8bc2f2	Patch
https://github.com/zulip/zulip/commit/1a8429e338ff53bdcc4b42e7e71b6fffdd84fcd1	Patch
https://github.com/zulip/zulip/commit/6608c8777254e73a4b540e5e1c4af92e680a55fc	Patch
https://github.com/zulip/zulip/security/advisories/GHSA-vgf2-vw4r-m663	Patch Vendor Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:zulip:zulip_server::::::::
	cpe:2.3:a:zulip:zulip_server:2.0.0:rc1::::::

History

No history.

Information

Published : 2025-07-02 20:15

Updated : 2025-10-02 01:51

NVD link : CVE-2025-52559

Mitre link : CVE-2025-52559

CVE.ORG link : CVE-2025-52559

JSON object : View

Products Affected

zulip

zulip_server

CWE

CWE-79

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

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