{"cve":"CVE-2020-10748","nvd":{"published":"2020-09-16T18:15:12.547","modified":"2026-06-17T02:48:22.223","status":"Modified","description":"A flaw was found in Keycloak's data filter, in version 10.0.1, where it allowed the processing of data URLs in some circumstances. This flaw allows an attacker to conduct cross-site scripting or further attacks.","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://bugzilla.redhat.com/show_bug.cgi?id=1836786","https://bugzilla.redhat.com/show_bug.cgi?id=1836786"],"products":["redhat:keycloak","redhat:single_sign-on"],"source":"nvd","synced_at":"2026-10-19T21:09:20.498348299+00:00"},"epss":{"cve":"CVE-2020-10748","score":0.00931,"percentile":0.60631,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-hgpg-593r-hhvp","url":"https://osv.dev/vulnerability/GHSA-hgpg-593r-hhvp","summary":"Cross-site Scripting in Keycloak","modified":"2023-11-08T04:02:00.483895Z","packages":[{"ecosystem":"Maven","name":"org.keycloak:keycloak-parent","purl":"pkg:maven/org.keycloak/keycloak-parent","ranges":["<10.0.2"],"fixed":["10.0.2"]}]}],"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."]}