{"id":"CVE-2018-9999","aliases":["EUVD-2018-21591","GHSA-cg35-j5q6-x5vf"],"status":"published","title":"In Zulip Server versions before 1.7.2, there was an XSS issue with user uploads and the (default)...","description":"In Zulip Server versions before 1.7.2, there was an XSS issue with user uploads and the (default) LOCAL_UPLOADS_DIR storage backend.","severity":{"version":"3.0","score":5.4,"vector":"CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.00732,"percentile":0.5457,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-79"],"published":"2018-04-18T08:00:00Z","modified":"2026-10-24T10:30:31Z","products":[{"vendor":"zulip","product":"zulip_server"}],"references":[{"url":"https://blog.zulip.org/2018/04/12/zulip-1-7-2-released/","tags":["x_refsource_CONFIRM","x_transferred","Release Notes","Vendor Advisory","advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2018-9999"},{"url":"https://github.com/advisories/GHSA-cg35-j5q6-x5vf"}],"sources":{"cve":[{"id":"CVE-2018-9999","description":"In Zulip Server versions before 1.7.2, there was an XSS issue with user uploads and the (default) LOCAL_UPLOADS_DIR storage backend.","status":"published","published":"2018-04-18T08:00:00Z","modified":"2024-08-05T07:32:00.669Z","updated_at":"2026-11-02T14:35:02.603326Z"}],"euvd":[{"id":"EUVD-2018-21591","description":"In Zulip Server versions before 1.7.2, there was an XSS issue with user uploads and the (default) LOCAL_UPLOADS_DIR storage backend.","status":"published","published":"2018-04-18T08:00:00Z","modified":"2024-08-05T07:32:00Z","updated_at":"2026-11-03T02:39:59.5072Z"}],"ghsa":[{"id":"GHSA-cg35-j5q6-x5vf","title":"In Zulip Server versions before 1.7.2, there was an XSS issue with user uploads and the (default)...","description":"In Zulip Server versions before 1.7.2, there was an XSS issue with user uploads and the (default) LOCAL_UPLOADS_DIR storage backend.","status":"published","published":"2022-05-14T03:23:20Z","modified":"2023-02-02T05:07:48Z","cvss":[{"version":"3.0","score":5.4,"vector":"CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N","level":"medium"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T14:52:35.379197Z"}],"nvd":[{"id":"CVE-2018-9999","description":"In Zulip Server versions before 1.7.2, there was an XSS issue with user uploads and the (default) LOCAL_UPLOADS_DIR storage backend.","status":"published","published":"2018-04-18T08:29:00.89Z","modified":"2026-06-17T02:07:28.46Z","cvss":[{"version":"3.0","score":5.4,"vector":"CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N","level":"medium","assessor":"primary"},{"version":"2.0","score":3.5,"vector":"AV:N/AC:M/Au:S/C:N/I:P/A:N","level":"low","assessor":"primary"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T14:04:25.506659Z"}],"osv":[{"id":"CVE-2018-9999","description":"In Zulip Server versions before 1.7.2, there was an XSS issue with user uploads and the (default) LOCAL_UPLOADS_DIR storage backend.","status":"published","published":"2018-04-18T08:29:00.89Z","modified":"2026-10-24T10:30:31.434016472Z","cvss":[{"version":"3.0","score":5.4,"vector":"CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N","level":"medium"}],"updated_at":"2026-11-02T15:44:10.051046Z"}]}}