{"id":"CVE-2021-4107","aliases":["EUVD-2021-2582","GHSA-rp42-c45j-g46x"],"status":"published","title":"Cross-site Scripting (XSS) - Reflected in yetiforcecompany/yetiforcecrm","description":"yetiforcecrm is vulnerable to Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')","severity":{"version":"3.0","score":5.3,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-10","score":0.00808,"percentile":0.57157,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-79"],"published":"2021-12-14T14:20:13Z","modified":"2026-10-20T10:54:56Z","affected":[{"source":"ghsa","ecosystem":"Packagist","package":"yetiforce/yetiforce-crm","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"last_affected":"6.3.0"}]}]},{"source":"osv","ecosystem":"Packagist","package":"yetiforce/yetiforce-crm","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"last_affected":"6.3.0"}]}],"versions":["4.0.0","4.1.0","4.2.0","4.3.0","4.4.0","4.4.0_RC1","4.4.0_RC2","4.4.0_RC3","5.0.0","5.1.0","5.2.0","5.3.0","6.0.0","6.0.0a","6.1.0","6.2.0","6.3.0"]}],"products":[{"vendor":"yetiforce","product":"yetiforce_customer_relationship_management"},{"vendor":"yetiforcecompany","product":"yetiforcecompany/yetiforcecrm"}],"references":[{"url":"https://huntr.dev/bounties/1d124520-cf29-4539-a0f3-6d041af7b5a8","tags":["x_refsource_CONFIRM","x_transferred","Exploit","Patch","Third Party Advisory","fix","web"]},{"url":"https://github.com/yetiforcecompany/yetiforcecrm/commit/a062d3d5fecb000db207a2ad8a446db97ad96b89","tags":["x_refsource_MISC","x_transferred","Patch","Third Party Advisory","fix","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-4107","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-rp42-c45j-g46x"},{"url":"https://github.com/yetiforcecompany/yetiforcecrm","tags":["package"]}],"sources":{"cve":[{"id":"CVE-2021-4107","title":"Cross-site Scripting (XSS) - 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