{"id":"CVE-2020-15273","aliases":["EUVD-2020-1473","GHSA-wpww-4jf4-4hx8"],"status":"published","title":"Cross-Site Scripting in baserCMS","description":"baserCMS before version 4.4.1 is vulnerable to Cross-Site Scripting. The issue affects the following components: Edit feed settings, Edit widget area, Sub site new registration, New category registration. Arbitrary JavaScript may be executed by entering specific characters in the account that can access the file upload function category list, subsite setting list, widget area edit, and feed list on the management screen. The issue was introduced in version 4.0.0. It is fixed in version 4.4.1.","severity":{"version":"3.1","score":7.3,"vector":"CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:C/C:H/I:H/A:N","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-12","score":0.01029,"percentile":0.64127,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-79"],"published":"2020-10-30T19:10:16Z","modified":"2026-10-20T10:51:54Z","fixes":[{"ecosystem":"Packagist","package":"baserproject/basercms","fixed_in":["4.4.1"],"sources":["ghsa","osv"]}],"affected":[{"source":"ghsa","ecosystem":"Packagist","package":"baserproject/basercms","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"4.4.0"},{"fixed":"4.4.1"}]}]},{"source":"osv","ecosystem":"Packagist","package":"baserproject/basercms","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"4.4.0"},{"fixed":"4.4.1"}]}],"versions":["4.4.0"]}],"products":[{"vendor":"basercms","product":"basercms"},{"vendor":"baserproject","product":"basercms"}],"references":[{"url":"https://github.com/baserproject/basercms/security/advisories/GHSA-wpww-4jf4-4hx8","tags":["x_refsource_CONFIRM","x_transferred","Patch","Third Party Advisory","fix","web"]},{"url":"https://packagist.org/packages/baserproject/basercms","tags":["x_refsource_MISC","x_transferred","Third Party Advisory","advisory","web"]},{"url":"https://github.com/baserproject/basercms/commit/b70474ef9dcee6ad8826360884625dc7ca9041a1","tags":["x_refsource_MISC","x_transferred","Patch","Third Party Advisory","fix","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2020-15273","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-wpww-4jf4-4hx8"}],"sources":{"cve":[{"id":"CVE-2020-15273","title":"Cross-Site Scripting in baserCMS","description":"baserCMS before version 4.4.1 is vulnerable to Cross-Site Scripting. The issue affects the following components: Edit feed settings, Edit widget area, Sub site new registration, New category registration. Arbitrary JavaScript may be executed by entering specific characters in the account that can access the file upload function category list, subsite setting list, widget area edit, and feed list on the management screen. The issue was introduced in version 4.0.0. It is fixed in version 4.4.1.","status":"published","published":"2020-10-30T19:10:16Z","modified":"2024-08-04T13:15:19.029Z","cvss":[{"version":"3.1","score":7.3,"vector":"CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:C/C:H/I:H/A:N","level":"high","assessor":"cna"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T14:35:50.228781Z"}],"euvd":[{"id":"EUVD-2020-1473","description":"baserCMS before version 4.4.1 is vulnerable to Cross-Site Scripting. The issue affects the following components: Edit feed settings, Edit widget area, Sub site new registration, New category registration. Arbitrary JavaScript may be executed by entering specific characters in the account that can access the file upload function category list, subsite setting list, widget area edit, and feed list on the management screen. The issue was introduced in version 4.0.0. It is fixed in version 4.4.1.","status":"published","published":"2020-10-30T19:10:16Z","modified":"2024-08-04T13:15:19Z","cvss":[{"version":"3.1","score":7.3,"vector":"CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:C/C:H/I:H/A:N","level":"high"}],"updated_at":"2026-11-03T03:07:31.955969Z"}],"ghsa":[{"id":"GHSA-wpww-4jf4-4hx8","title":"Edit feed settings  and others, Cross Site Scripting(XSS) Vulnerability in Latest Release 4.4.0","description":"baserCMS 4.4.0 and earlier is affected by Cross Site Scripting (XSS).\n\nImpact: XSS via Arbitrary script execution.\nAttack vector is: Administrator must be logged in.\nComponents are: Edit feed settings, Edit widget area, Sub site new registration, New category registration\nTested baserCMS Version : 4.4.0 (Latest)\nAffected baserCMS Version : 4.0.0 ~ 4.4.0\nPatches : https://basercms.net/security/20201029\nFound by Aquilao Null","status":"published","published":"2020-11-04T21:08:38Z","modified":"2023-01-09T05:03:55Z","cvss":[{"version":"3.1","score":7.3,"vector":"CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:C/C:H/I:H/A:N","level":"high"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T14:36:07.581563Z"}],"nvd":[{"id":"CVE-2020-15273","description":"baserCMS before version 4.4.1 is vulnerable to Cross-Site Scripting. The issue affects the following components: Edit feed settings, Edit widget area, Sub site new registration, New category registration. Arbitrary JavaScript may be executed by entering specific characters in the account that can access the file upload function category list, subsite setting list, widget area edit, and feed list on the management screen. The issue was introduced in version 4.0.0. It is fixed in version 4.4.1.","status":"published","published":"2020-10-30T19:15:12.597Z","modified":"2026-06-17T02:56:24.24Z","cvss":[{"version":"3.1","score":7.3,"vector":"CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:C/C:H/I:H/A:N","level":"high","assessor":"secondary"},{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:H/I:H/A:N","level":"high","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":"2026-11-02T14:06:21.80969Z"}],"osv":[{"id":"CVE-2020-15273","description":"baserCMS before version 4.4.1 is vulnerable to Cross-Site Scripting. The issue affects the following components: Edit feed settings, Edit widget area, Sub site new registration, New category registration. Arbitrary JavaScript may be executed by entering specific characters in the account that can access the file upload function category list, subsite setting list, widget area edit, and feed list on the management screen. The issue was introduced in version 4.0.0. It is fixed in version 4.4.1.","status":"published","published":"2020-10-30T19:15:12.597Z","modified":"2026-10-20T10:51:54.28301816Z","cvss":[{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:H/I:H/A:N","level":"high"}],"updated_at":"2026-11-02T15:44:14.828228Z"},{"id":"GHSA-wpww-4jf4-4hx8","title":"Edit feed settings  and others, Cross Site Scripting(XSS) Vulnerability in Latest Release 4.4.0","description":"baserCMS 4.4.0 and earlier is affected by Cross Site Scripting (XSS).\n\nImpact: XSS via Arbitrary script execution.\nAttack vector is: Administrator must be logged in.\nComponents are: Edit feed settings, Edit widget area, Sub site new registration, New category registration\nTested baserCMS Version : 4.4.0 (Latest)\nAffected baserCMS Version : 4.0.0 ~ 4.4.0\nPatches : https://basercms.net/security/20201029\nFound by Aquilao Null","status":"published","published":"2020-11-04T21:08:38Z","modified":"2026-07-08T06:00:02.553564456Z","cvss":[{"version":"3.1","score":7.3,"vector":"CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:C/C:H/I:H/A:N","level":"high"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T15:46:58.767335Z"}]}}