CVE-2025-52559

Zulip XSS in digest preview URL

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/.

Category

6.8
CVSS
Severity: Medium
CVSS 3.1 •
EPSS 0.03%
Affected: zulip zulip
Published at:
Updated at:

References

Frequently Asked Questions

What is the severity of CVE-2025-52559?
CVE-2025-52559 has been scored as a medium severity vulnerability.
How to fix CVE-2025-52559?
To fix CVE-2025-52559, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2025-52559 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2025-52559 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2025-52559?
CVE-2025-52559 affects zulip zulip.
This platform uses data from the NIST NVD, MITRE CVE, MITRE CWE, First.org and CISA KEV but is not endorsed or certified by these entities. CVE is a registred trademark of the MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. CWE is a registred trademark of the MITRE Corporation and the authoritative source of CWE content is MITRE's CWE web site.
© 2025 Under My Watch. All Rights Reserved.