CVE-2025-52559

Zulip XSS in digest preview URL

Published Jul 2, 2025 CVSS 3.1 · 6.8 Medium EPSS < 1% KEV · Not listed
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/.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
EUVD EUVD EUVD-2025-19763 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/.
History
Type Values Removed Values Added
First Time appeared Zulip zulip Server
CPEs cpe:2.3:a:zulip:zulip:*:*:*:*:*:*:*:*
cpe:2.3:a:zulip:zulip:2.0.0:rc1:*:*:*:*:*:*
cpe:2.3:a:zulip:zulip_server:*:*:*:*:*:*:*:*
cpe:2.3:a:zulip:zulip_server:2.0.0:rc1:*:*:*:*:*:*
Vendors & Products Zulip zulip Server
Type Values Removed Values Added
CPEs cpe:2.3:a:zulip:zulip:*:*:*:*:*:*:*:*
cpe:2.3:a:zulip:zulip:2.0.0:rc1:*:*:*:*:*:*
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
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/.
Title Zulip XSS in digest preview URL
Weaknesses CWE-79
References
Metrics cvssV3_1

{'score': 6.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:N/A:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
GitHub_M
Published
Updated
Jul 2, 2025, 7:37 PM
Reserved
Jun 18, 2025, 3:55 AM
Status
Analyzed
Published
Jul 2, 2025, 8:15 PM
Modified
Jun 17, 2026, 9:36 AM