{"cve":"CVE-2021-47908","nvd":{"published":"2026-02-01T13:15:54.727","modified":"2026-06-17T04:18:44.190","status":"Deferred","description":"Ultimate POS 4.4 contains a persistent cross-site scripting vulnerability in the product name parameter that allows remote attackers to inject malicious scripts. Attackers can exploit the vulnerability through product add or edit functions to execute arbitrary JavaScript and potentially hijack user sessions.","cvss_v4":{"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N","score":5.1},"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N","score":6.4},"cwes":["CWE-79"],"references":["https://ultimatefosters.com/docs/ultimatepos/","https://www.vulncheck.com/advisories/ultimate-pos-persistent-cross-site-scripting-via-product-name","https://www.vulnerability-lab.com/get_content.php?id=2296"],"products":[],"source":"nvd","synced_at":"2026-10-19T22:22:27.261130201+00:00"},"epss":{"cve":"CVE-2021-47908","score":0.00339,"percentile":0.27323,"date":"2026-11-01"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}