{"id":"CVE-2020-21246","aliases":["EUVD-2023-1808","GHSA-gqr4-cvf4-3957"],"status":"published","title":"YiiCMS Cross Site Scripting vulnerability","description":"Cross Site Scripting vulnerability in YiiCMS v.1.0 allows a remote attacker to execute arbitrary code via the news function.","severity":{"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","from":"nvd"},"epss":{"day":"2026-11-10","score":0.00553,"percentile":0.46547,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-79"],"published":"2023-06-20T00:00:00Z","modified":"2026-10-20T10:52:11Z","fixes":[{"ecosystem":"Packagist","package":"sheng/yiicms","fixed_in":["1.2.1"],"sources":["ghsa","osv"]}],"affected":[{"source":"ghsa","ecosystem":"Packagist","package":"sheng/yiicms","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.2.1"}]}]},{"source":"osv","ecosystem":"Packagist","package":"sheng/yiicms","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.2.1"}]}],"versions":["1.0","1.1","1.1.1","1.1.10","1.1.11","1.1.12","1.1.13","1.1.14","1.1.15","1.1.16","1.1.17","1.1.18","1.1.2","1.1.3","1.1.4","1.1.5","1.1.6","1.1.7","1.1.8","1.1.9","v1.2.0"]}],"products":[{"vendor":"yiicms_project","product":"yiicms"}],"references":[{"url":"https://github.com/yongshengli/yiicms/issues/6","tags":["x_transferred","Exploit","Issue Tracking","Patch","fix","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2020-21246","tags":["advisory"]},{"url":"https://github.com/yongshengli/yiicms/commit/4a9d68564eb78d9f64e3f5dd77186a154093615b","tags":["web"]},{"url":"https://github.com/advisories/GHSA-gqr4-cvf4-3957"},{"url":"https://github.com/yongshengli/yiicms","tags":["package"]}],"sources":{"cve":[{"id":"CVE-2020-21246","description":"Cross Site Scripting vulnerability in YiiCMS v.1.0 allows a remote attacker to execute arbitrary code via the news function.","status":"published","published":"2023-06-20T00:00:00Z","modified":"2024-12-10T16:32:35.299Z","cvss":[{"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":"adp"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T14:35:48.854892Z"}],"euvd":[{"id":"EUVD-2023-1808","description":"Cross Site Scripting vulnerability in YiiCMS v.1.0 allows a remote attacker to execute arbitrary code via the news function.","status":"published","published":"2023-06-20T00:00:00Z","modified":"2024-12-10T16:32:35Z","cvss":[{"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"}],"updated_at":"2026-11-03T00:04:37.743244Z"}],"ghsa":[{"id":"GHSA-gqr4-cvf4-3957","title":"YiiCMS Cross Site Scripting vulnerability","description":"Cross Site Scripting vulnerability in YiiCMS v.1.2.0 and prior allows a remote attacker to execute arbitrary code via the news function.","status":"published","published":"2023-06-20T15:31:08Z","modified":"2024-12-10T20:55:53Z","cvss":[{"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"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T14:38:24.542211Z"}],"nvd":[{"id":"CVE-2020-21246","description":"Cross Site Scripting vulnerability in YiiCMS v.1.0 allows a remote attacker to execute arbitrary code via the news function.","status":"published","published":"2023-06-20T15:15:11.073Z","modified":"2026-06-17T03:03:36.75Z","cvss":[{"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"},{"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":"secondary"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T14:06:47.910346Z"}],"osv":[{"id":"CVE-2020-21246","description":"Cross Site Scripting vulnerability in YiiCMS v.1.0 allows a remote attacker to execute arbitrary code via the news function.","status":"published","published":"2023-06-20T15:15:11.073Z","modified":"2026-10-20T10:52:11.316052705Z","cvss":[{"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"}],"updated_at":"2026-11-02T15:44:15.212689Z"},{"id":"GHSA-gqr4-cvf4-3957","title":"YiiCMS Cross Site Scripting vulnerability","description":"Cross Site Scripting vulnerability in YiiCMS v.1.2.0 and prior allows a remote attacker to execute arbitrary code via the news function.","status":"published","published":"2023-06-20T15:31:08Z","modified":"2024-12-10T21:00:51.633227Z","cvss":[{"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"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T15:46:48.191583Z"}]}}