{"cve":"CVE-2021-45815","nvd":{"published":"2021-12-30T13:15:07.463","modified":"2026-06-17T04:14:06.900","status":"Modified","description":"Quectel UC20 UMTS/HSPA+ UC20 6.3.14 is affected by a Cross Site Scripting (XSS) vulnerability.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","score":6.1},"cwes":["CWE-79"],"references":["https://drive.google.com/file/d/1SizrkduiRFzjDcld4e9F_RV6N9DcIOQE/view?usp=sharing","https://drive.google.com/file/d/1SizrkduiRFzjDcld4e9F_RV6N9DcIOQE/view?usp=sharing"],"products":["quectel:uc20_firmware"],"source":"nvd","synced_at":"2026-10-19T21:26:33.761856376+00:00"},"epss":{"cve":"CVE-2021-45815","score":0.00581,"percentile":0.47756,"date":"2026-10-31"},"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."]}