{"id":"CVE-2025-52559","url":"https://www.cyber-defence.io/tools/cve/CVE-2025-52559","generatedAt":"2026-10-28T02:24:23.319Z","title":"This URL, though not the digest itself, contains a cross-site scripting (XSS) vulnerability in both topic names and channel names.","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/.","published":"2025-07-02T20:15:31.000Z","lastModified":"2026-06-17T09:36:41.000Z","status":"Analyzed","sourceIdentifier":"security-advisories@github.com","cvss":{"version":"3.1","score":5.4,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N"},"cwe":["CWE-79"],"affected":["zulip/zulip server"],"epss":{"score":0.00282,"percentile":0.2058,"date":"2026-10-26","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"low","text":"Lower severity and a low EPSS score (0.28%). Track it; it rarely justifies an emergency change on its own."},"changes":[],"references":[{"url":"https://github.com/zulip/zulip/commit/175ec1f365b0db982d6eac9019701cbf6e8bc2f2","tags":["Patch"],"source":"security-advisories@github.com"},{"url":"https://github.com/zulip/zulip/commit/1a8429e338ff53bdcc4b42e7e71b6fffdd84fcd1","tags":["Patch"],"source":"security-advisories@github.com"},{"url":"https://github.com/zulip/zulip/commit/6608c8777254e73a4b540e5e1c4af92e680a55fc","tags":["Patch"],"source":"security-advisories@github.com"},{"url":"https://github.com/zulip/zulip/security/advisories/GHSA-vgf2-vw4r-m663","tags":["Patch","Vendor Advisory"],"source":"security-advisories@github.com"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2025-52559","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}