{"cve":"CVE-2019-11738","nvd":{"published":"2019-09-27T18:15:11.600","modified":"2026-06-17T02:13:32.090","status":"Modified","description":"If a Content Security Policy (CSP) directive is defined that uses a hash-based source that takes the empty string as input, execution of any javascript: URIs will be allowed. This could allow for malicious JavaScript content to be run, bypassing CSP permissions. This vulnerability affects Firefox < 69 and Firefox ESR < 68.1.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L","score":6.3},"cwes":[],"references":["http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00011.html","http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00017.html","https://bugzilla.mozilla.org/show_bug.cgi?id=1452037","https://www.mozilla.org/security/advisories/mfsa2019-25/","https://www.mozilla.org/security/advisories/mfsa2019-26/"],"products":["mozilla:firefox","mozilla:firefox_esr","opensuse:leap"],"source":"nvd","synced_at":"2026-10-19T20:59:10.855360465+00:00"},"epss":{"cve":"CVE-2019-11738","score":0.01447,"percentile":0.7332,"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."]}