{"cve":"CVE-2021-21398","nvd":{"published":"2021-03-30T16:15:15.177","modified":"2026-06-17T03:35:29.283","status":"Modified","description":"PrestaShop is a fully scalable open source e-commerce solution. In PrestaShop before version 1.7.7.3, an attacker can inject HTML when the Grid Column Type DataColumn is badly used. The problem is fixed in 1.7.7.3","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N","score":5.4},"cwes":["CWE-79"],"references":["https://github.com/PrestaShop/PrestaShop/commit/aaaba8177f3b3c510461b5e3249e30e60f900205","https://github.com/PrestaShop/PrestaShop/releases/tag/1.7.7.3","https://github.com/PrestaShop/PrestaShop/security/advisories/GHSA-fhhq-4x46-qx77","https://github.com/PrestaShop/PrestaShop/commit/aaaba8177f3b3c510461b5e3249e30e60f900205","https://github.com/PrestaShop/PrestaShop/releases/tag/1.7.7.3"],"products":["prestashop:prestashop"],"source":"nvd","synced_at":"2026-10-19T21:17:01.373894544+00:00"},"epss":{"cve":"CVE-2021-21398","score":0.00778,"percentile":0.5587,"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."]}