{"id":"CVE-2020-9443","aliases":["EUVD-2020-30263","GHSA-mmgh-298q-2qxp"],"status":"published","title":"Zulip Desktop before 4.0.3 loaded untrusted content in an Electron webview with web security...","description":"Zulip Desktop before 4.0.3 loaded untrusted content in an Electron webview with web security disabled, which can be exploited for XSS in a number of ways. This especially affects Zulip Desktop 2.3.82.","severity":{"version":"3.1","score":6.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.00641,"percentile":0.51012,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-79"],"published":"2020-03-18T12:20:59Z","modified":"2026-10-24T10:30:43Z","products":[{"vendor":"zulipchat","product":"zulip_desktop"}],"references":[{"url":"https://blog.zulip.org/2020/02/29/zulip-desktop-4-0-3-security-release/","tags":["x_refsource_CONFIRM","x_transferred","Vendor Advisory","advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2020-9443"},{"url":"https://github.com/advisories/GHSA-mmgh-298q-2qxp"}],"sources":{"cve":[{"id":"CVE-2020-9443","description":"Zulip Desktop before 4.0.3 loaded untrusted content in an Electron webview with web security disabled, which can be exploited for XSS in a number of ways. This especially affects Zulip Desktop 2.3.82.","status":"published","published":"2020-03-18T12:20:59Z","modified":"2024-08-04T10:26:16.113Z","updated_at":"2026-11-02T14:35:49.209579Z"}],"euvd":[{"id":"EUVD-2020-30263","description":"Zulip Desktop before 4.0.3 loaded untrusted content in an Electron webview with web security disabled, which can be exploited for XSS in a number of ways. This especially affects Zulip Desktop 2.3.82.","status":"published","published":"2020-03-18T12:20:59Z","modified":"2024-08-04T10:26:16Z","updated_at":"2026-11-03T03:07:54.025234Z"}],"ghsa":[{"id":"GHSA-mmgh-298q-2qxp","title":"Zulip Desktop before 4.0.3 loaded untrusted content in an Electron webview with web security...","description":"Zulip Desktop before 4.0.3 loaded untrusted content in an Electron webview with web security disabled, which can be exploited for XSS in a number of ways. This especially affects Zulip Desktop 2.3.82.","status":"published","published":"2022-05-24T17:11:52Z","modified":"2023-01-29T05:01:51Z","updated_at":"2026-11-02T14:44:55.873032Z"}],"nvd":[{"id":"CVE-2020-9443","description":"Zulip Desktop before 4.0.3 loaded untrusted content in an Electron webview with web security disabled, which can be exploited for XSS in a number of ways. This especially affects Zulip Desktop 2.3.82.","status":"published","published":"2020-03-18T13:15:12.573Z","modified":"2026-06-17T03:27:57.637Z","cvss":[{"version":"3.1","score":6.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","level":"medium","assessor":"primary"},{"version":"2.0","score":4.3,"vector":"AV:N/AC:M/Au:N/C:N/I:P/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T14:05:56.580228Z"}],"osv":[{"id":"CVE-2020-9443","description":"Zulip Desktop before 4.0.3 loaded untrusted content in an Electron webview with web security disabled, which can be exploited for XSS in a number of ways. This especially affects Zulip Desktop 2.3.82.","status":"published","published":"2020-03-18T13:15:12.573Z","modified":"2026-10-24T10:30:43.996050915Z","cvss":[{"version":"3.1","score":6.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","level":"medium"}],"updated_at":"2026-11-02T15:44:17.663289Z"}]}}