{"id":"CVE-2025-52559","aliases":["EUVD-2025-19763","GHSA-vgf2-vw4r-m663"],"status":"published","title":"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/.","severity":{"version":"3.1","score":6.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:N/A:N","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-12","score":0.00289,"percentile":0.21779,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-79"],"published":"2025-07-02T19:31:12Z","modified":"2026-11-11T10:30:25Z","products":[{"vendor":"zulip","product":"zulip"},{"vendor":"zulip","product":"zulip_server"}],"references":[{"url":"https://github.com/zulip/zulip/security/advisories/GHSA-vgf2-vw4r-m663","tags":["x_refsource_CONFIRM","Patch","Vendor Advisory","advisory"]},{"url":"https://github.com/zulip/zulip/commit/175ec1f365b0db982d6eac9019701cbf6e8bc2f2","tags":["x_refsource_MISC","Patch","fix"]},{"url":"https://github.com/zulip/zulip/commit/1a8429e338ff53bdcc4b42e7e71b6fffdd84fcd1","tags":["x_refsource_MISC","Patch","fix"]},{"url":"https://github.com/zulip/zulip/commit/6608c8777254e73a4b540e5e1c4af92e680a55fc","tags":["x_refsource_MISC","Patch","fix"]},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/52xxx/CVE-2025-52559.json","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2025-52559","tags":["advisory"]}],"sources":{"cve":[{"id":"CVE-2025-52559","title":"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/.","status":"published","published":"2025-07-02T19:31:12.064Z","modified":"2025-07-02T19:37:15.55Z","cvss":[{"version":"3.1","score":6.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:N/A:N","level":"medium","assessor":"cna"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T14:32:31.309974Z"}],"euvd":[{"id":"EUVD-2025-19763","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/.","status":"published","published":"2025-07-02T19:31:12Z","modified":"2025-07-02T19:37:15Z","cvss":[{"version":"3.1","score":6.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:N/A:N","level":"medium"}],"updated_at":"2026-11-02T20:32:14.284181Z"}],"nvd":[{"id":"CVE-2025-52559","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/.","status":"published","published":"2025-07-02T20:15:31.443Z","modified":"2026-06-17T09:36:40.54Z","cvss":[{"version":"3.1","score":6.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:N/A:N","level":"medium","assessor":"secondary"},{"version":"3.1","score":5.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T14:11:15.754475Z"}],"osv":[{"id":"CVE-2025-52559","title":"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/.","status":"published","published":"2025-07-02T19:31:12.064Z","modified":"2026-11-11T10:30:25.599896016Z","cvss":[{"version":"3.1","score":6.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:N/A:N","level":"medium"}],"cwes":["CWE-79"],"updated_at":"2026-11-11T11:06:34.879978Z"}]}}