{"action":"Upgrade baserproject/basercms to 4.4.5 or later.","affected":[{"fixed":"4.4.5","introduced":"0"}],"component":"baserproject/basercms","cve_ids":["CVE-2021-20683"],"ecosystem":"Packagist","epss":0.00731,"exploited":false,"fixed_versions":["4.4.5"],"ghsa_id":"GHSA-v9w8-hq92-v39m","id":"tcs_01M5KF918631YQYATPNND3414T","modified_at":"2026-09-10T03:49:06.365817295Z","published_at":"2021-06-08T20:10:45Z","references":["https://osv.dev/vulnerability/GHSA-v9w8-hq92-v39m","https://nvd.nist.gov/vuln/detail/CVE-2021-20683","https://github.com/baserproject/basercms/commit/88ccc61e5656b05dd13204d61de706efaa2cd0b1","https://basercms.net/security/JVN64869876","https://jvn.jp/en/jp/JVN64869876/index.html"],"severity":{"label":"medium","score":5.4},"sources":[{"source":"osv","source_id":"GHSA-v9w8-hq92-v39m","url":"https://osv.dev/vulnerability/GHSA-v9w8-hq92-v39m"}],"summary":"Cross-site Scripting (XSS) in baserCMS"}