{"id":"CVE-2021-39170","aliases":["GHSA-2v88-qq7x-xq5f"],"url":"https://o3.security/vulnerability/CVE-2021-39170","summary":"Improper Encoding or Escaping of Output in Asset Metadata Component","details":"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.","published":"2021-09-01T14:15:08.023Z","modified":"2026-08-07T19:46:51.074139Z","cvss":{"score":5.4,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N"},"epss":null,"cisaKev":null,"exploitsKnown":1,"affectedPackages":[{"ecosystem":"Packagist","name":"pimcore/pimcore","fixedVersion":"10.1.2"}],"fix":{"url":"https://github.com/pimcore/pimcore/pull/10178","label":"pimcore/pimcore#10178"},"references":[{"type":"FIX","url":"https://github.com/pimcore/pimcore/pull/10178"},{"type":"FIX","url":"https://github.com/pimcore/pimcore/pull/10178.patch"},{"type":"FIX","url":"https://github.com/pimcore/pimcore/security/advisories/GHSA-2v88-qq7x-xq5f"},{"type":"FIX","url":"https://huntr.dev/bounties/e4cb9cd8-89cf-427c-8d2e-37ca40099bf2/"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-07T19:46:51.074139Z"}}