{"cve":"CVE-2021-39170","nvd":{"published":"2021-09-01T14:15:08.023","modified":"2026-06-17T04:03:14.440","status":"Modified","description":"Pimcore is an open source data & experience management platform. Prior to version 10.1.2, an authenticated user could add XSS code as a value of custom metadata on assets. There is a patch for this issue in Pimcore version 10.1.2. As a workaround, users may apply the patch manually.","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","CWE-116"],"references":["https://github.com/pimcore/pimcore/pull/10178","https://github.com/pimcore/pimcore/pull/10178.patch","https://github.com/pimcore/pimcore/security/advisories/GHSA-2v88-qq7x-xq5f","https://huntr.dev/bounties/e4cb9cd8-89cf-427c-8d2e-37ca40099bf2/","https://github.com/pimcore/pimcore/pull/10178"],"products":["pimcore:pimcore"],"source":"nvd","synced_at":"2026-10-19T21:21:57.125947417+00:00"},"epss":{"cve":"CVE-2021-39170","score":0.01245,"percentile":0.69297,"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."]}