CVE-2025-52559
6.8 · MEDIUMOverview
CVE-2025-52559 is a medium-severity vulnerability affecting zulip zulip_server. It was published on July 2, 2025 and has a CVSS 3.1 base score of 6.8 (MEDIUM).
This vulnerability has a CVSS 3.1 base score of 6.8, rated MEDIUM. It can be exploited remotely over the network. Some level of privileges is required for exploitation.
Technical 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
Check the references section for vendor advisories and patches from zulip. Update zulip_server to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
Affected Products
| Vendor | Product | Versions | Status |
|---|---|---|---|
| zulip | zulip_server | >= 2.0.1, < 10.4 | Affected |
References
Frequently Asked Questions
What is CVE-2025-52559?
CVE-2025-52559 is a medium-severity vulnerability affecting zulip zulip_server. It was published on July 2, 2025 and has a CVSS 3.1 base score of 6.8 (MEDIUM).
How severe is CVE-2025-52559?
This vulnerability has a CVSS 3.1 base score of 6.8, rated MEDIUM. It can be exploited remotely over the network. Some level of privileges is required for exploitation.
How do I fix or remediate CVE-2025-52559?
Check the references section for vendor advisories and patches from zulip. Update zulip_server to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2025-52559?
CyberStrike's AI-powered security agents can automatically detect CVE-2025-52559 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
How CyberStrike Helps
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