{"id":"CVE-2020-18702","aliases":["EUVD-2021-0217","GHSA-5m69-3chg-6f8m","PYSEC-2021-143"],"status":"published","title":"Cross Site Scripting (XSS) in Quokka","description":"Cross Site Scripting (XSS) in Quokka v0.4.0 allows remote attackers to execute arbitrary code via the 'Username' parameter in the component 'quokka/admin/actions.py'.","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":"2026-11-11","score":0.01312,"percentile":0.71051,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-79"],"published":"2021-08-16T17:55:35Z","modified":"2026-10-20T10:49:56Z","affected":[{"source":"ghsa","ecosystem":"PyPI","package":"quokka","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"last_affected":"0.4.0"}]}]},{"source":"osv","ecosystem":"PyPI","package":"quokka","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"last_affected":"0.4.0"}]}],"versions":["0.0.1.dev84","0.1.0","0.2.0","0.3.0","0.3.1","0.3.2","0.3.3","0.3.4","0.3.6.dev1","0.3.7.dev1","0.4.0"]},{"source":"osv","ecosystem":"PyPI","package":"quokka","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.0.1.dev84","0.1.0","0.2.0","0.3.0","0.3.1","0.3.2","0.3.3","0.3.4","0.3.6.dev1","0.3.7.dev1","0.4.0","0.4.1.dev22","0.4.1.dev6"]}],"products":[{"vendor":"quokka_project","product":"quokka"}],"references":[{"url":"https://github.com/rochacbruno/quokka/issues/675","tags":["x_refsource_MISC","x_transferred","Exploit","Patch","Third Party Advisory","fix","web","report"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2020-18702","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-5m69-3chg-6f8m","tags":["advisory"]},{"url":"https://github.com/pypa/advisory-database/tree/main/vulns/quokka/PYSEC-2021-143.yaml","tags":["web"]},{"url":"https://github.com/rochacbruno/quokka","tags":["package"]}],"sources":{"cve":[{"id":"CVE-2020-18702","description":"Cross Site Scripting (XSS) in Quokka v0.4.0 allows remote attackers to execute arbitrary code via the 'Username' parameter in the component 'quokka/admin/actions.py'.","status":"published","published":"2021-08-16T17:55:35Z","modified":"2024-08-04T14:08:29.827Z","updated_at":"2026-11-02T14:35:59.434367Z"}],"euvd":[{"id":"EUVD-2021-0217","description":"Cross Site Scripting (XSS) in Quokka v0.4.0 allows remote attackers to execute arbitrary code via the 'Username' parameter in the component 'quokka/admin/actions.py'.","status":"published","published":"2021-08-16T17:55:35Z","modified":"2024-08-04T14:08:29Z","updated_at":"2026-11-03T03:07:26.397496Z"}],"ghsa":[{"id":"GHSA-5m69-3chg-6f8m","title":"Cross Site Scripting (XSS) in Quokka","description":"Cross Site Scripting (XSS) in Quokka v0.4.0 allows remote attackers to execute arbitrary code via the 'Username' parameter in the component 'quokka/admin/actions.py'.","status":"published","published":"2021-08-30T16:23:26Z","modified":"2024-10-24T21:55:12Z","cvss":[{"version":"4.0","score":5.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N","level":"medium"},{"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"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T14:38:13.09489Z"}],"nvd":[{"id":"CVE-2020-18702","description":"Cross Site Scripting (XSS) in Quokka v0.4.0 allows remote attackers to execute arbitrary code via the 'Username' parameter in the component 'quokka/admin/actions.py'.","status":"published","published":"2021-08-16T18:15:07.137Z","modified":"2026-06-17T02:59:25.24Z","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":"2026-11-02T14:06:44.292752Z"}],"osv":[{"id":"CVE-2020-18702","description":"Cross Site Scripting (XSS) in Quokka v0.4.0 allows remote attackers to execute arbitrary code via the 'Username' parameter in the component 'quokka/admin/actions.py'.","status":"published","published":"2021-08-16T18:15:07.137Z","modified":"2026-10-20T10:49:56.808219502Z","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":"2026-11-02T15:44:15.212689Z"},{"id":"GHSA-5m69-3chg-6f8m","title":"Cross Site Scripting (XSS) in Quokka","description":"Cross Site Scripting (XSS) in Quokka v0.4.0 allows remote attackers to execute arbitrary code via the 'Username' parameter in the component 'quokka/admin/actions.py'.","status":"published","published":"2021-08-30T16:23:26Z","modified":"2024-10-24T22:26:43.749081Z","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"},{"version":"4.0","score":5.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N","level":"medium"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T15:46:38.553953Z"},{"id":"PYSEC-2021-143","description":"Cross Site Scripting (XSS) in Quokka v0.4.0 allows remote attackers to execute arbitrary code via the 'Username' parameter in the component 'quokka/admin/actions.py'.","status":"published","published":"2021-08-16T18:15:00Z","modified":"2023-11-08T04:02:44.344599Z","updated_at":"2026-11-02T15:52:52.682031Z"}]}}