Vulnerability Monitor

The vendors, products, and vulnerabilities you care about

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/.

Published

2025-07-02T20:15:31.443

Last Modified

2025-10-02T01:51:09.033

Status

Analyzed

Source

[email protected]

Severity

CVSSv3.1: 6.8 (MEDIUM)

Weaknesses

Type: Primary
CWE-79

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Application	zulip	zulip_server	< 10.4	Yes
Application	zulip	zulip_server	2.0.0	Yes

References

https://github.com/zulip/zulip/commit/175ec1f365b0db982d6eac9019701cbf6e8bc2f2 Patch ([email protected])
https://github.com/zulip/zulip/commit/1a8429e338ff53bdcc4b42e7e71b6fffdd84fcd1 Patch ([email protected])
https://github.com/zulip/zulip/commit/6608c8777254e73a4b540e5e1c4af92e680a55fc Patch ([email protected])
https://github.com/zulip/zulip/security/advisories/GHSA-vgf2-vw4r-m663 Patch, Vendor Advisory ([email protected])