{"id":"CVE-2020-15276","aliases":["EUVD-2020-1429","GHSA-fw5q-j9p4-3vxg"],"status":"published","title":"Cross Site Scripting in baserCMS","description":"baserCMS before version 4.4.1 is vulnerable to Cross-Site Scripting. Arbitrary JavaScript may be executed by entering a crafted nickname in blog comments. The issue affects the blog comment component. It is fixed in version 4.4.1.","severity":{"version":"3.1","score":7.7,"vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:N","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-12","score":0.01002,"percentile":0.63363,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-79"],"published":"2020-10-30T18:55:15Z","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://basercms.net/security/20201029","tags":["x_refsource_MISC","x_transferred","Vendor Advisory","advisory","web"]},{"url":"https://github.com/baserproject/basercms/security/advisories/GHSA-fw5q-j9p4-3vxg","tags":["x_refsource_CONFIRM","x_transferred","Patch","Third Party Advisory","fix","web"]},{"url":"https://github.com/baserproject/basercms/commit/d14f506385f21d67d5ff3462f204d4c2321b7c54","tags":["x_refsource_MISC","x_transferred","Patch","Third Party Advisory","fix","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2020-15276","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-fw5q-j9p4-3vxg"}],"sources":{"cve":[{"id":"CVE-2020-15276","title":"Cross Site Scripting in baserCMS","description":"baserCMS before version 4.4.1 is vulnerable to Cross-Site Scripting. Arbitrary JavaScript may be executed by entering a crafted nickname in blog comments. The issue affects the blog comment component. It is fixed in version 4.4.1.","status":"published","published":"2020-10-30T18:55:15Z","modified":"2024-08-04T13:15:19.024Z","cvss":[{"version":"3.1","score":7.7,"vector":"CVSS:3.1/AV:N/AC:H/PR:L/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-2020-1429","description":"baserCMS before version 4.4.1 is vulnerable to Cross-Site Scripting. Arbitrary JavaScript may be executed by entering a crafted nickname in blog comments. The issue affects the blog comment component. It is fixed in version 4.4.1.","status":"published","published":"2020-10-30T18:55:15Z","modified":"2024-08-04T13:15:19Z","cvss":[{"version":"3.1","score":7.7,"vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:N","level":"high"}],"updated_at":"2026-11-03T03:07:31.955969Z"}],"ghsa":[{"id":"GHSA-fw5q-j9p4-3vxg","title":"Blog comment posting, 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.\nComponents are: Blog comment posting\nTested baserCMS Version : 4.4.0 (Latest)\nAffected baserCMS Version : 4.0.0 ~ 4.4.0\nPatches : https://basercms.net/security/20201029\nFound by yama","status":"published","published":"2020-10-30T19:10:20Z","modified":"2023-01-09T05:04:29Z","cvss":[{"version":"3.1","score":7.7,"vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:N","level":"high"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T14:36:10.502376Z"}],"nvd":[{"id":"CVE-2020-15276","description":"baserCMS before version 4.4.1 is vulnerable to Cross-Site Scripting. Arbitrary JavaScript may be executed by entering a crafted nickname in blog comments. The issue affects the blog comment component. It is fixed in version 4.4.1.","status":"published","published":"2020-10-30T19:15:12.707Z","modified":"2026-06-17T02:56:24.593Z","cvss":[{"version":"3.1","score":7.7,"vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:N","level":"high","assessor":"secondary"},{"version":"3.1","score":8.7,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/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-2020-15276","description":"baserCMS before version 4.4.1 is vulnerable to Cross-Site Scripting. Arbitrary JavaScript may be executed by entering a crafted nickname in blog comments. The issue affects the blog comment component. It is fixed in version 4.4.1.","status":"published","published":"2020-10-30T19:15:12.707Z","modified":"2026-10-20T10:51:54.529624114Z","cvss":[{"version":"3.1","score":8.7,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N","level":"high"}],"updated_at":"2026-11-02T15:44:14.828228Z"},{"id":"GHSA-fw5q-j9p4-3vxg","title":"Blog comment posting, 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.\nComponents are: Blog comment posting\nTested baserCMS Version : 4.4.0 (Latest)\nAffected baserCMS Version : 4.0.0 ~ 4.4.0\nPatches : https://basercms.net/security/20201029\nFound by yama","status":"published","published":"2020-10-30T19:10:20Z","modified":"2026-07-08T06:00:31.505427152Z","cvss":[{"version":"3.1","score":7.7,"vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:N","level":"high"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T15:46:47.119724Z"}]}}