What’s Vulnerable › Vulnerabilities

CVE-2019-11737

• Severity: medium (CVSS 5.3 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.5% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2019-09-27 · updated 2026-06-17
• Weakness: CWE-345

Description

If a wildcard ('*') is specified for the host in Content Security Policy (CSP) directives, any port or path restriction of the directive will be ignored, leading to CSP directives not being properly applied to content. This vulnerability affects Firefox < 69.

Affected products

• Mozilla Firefox: before 69.0 — fixed in 69.0

How to fix

Upgrade to a fixed version: Mozilla Firefox 69.0. Check the vendor advisory for mitigations.

References

• https://bugzilla.mozilla.org/show_bug.cgi?id=1388015
• https://www.mozilla.org/security/advisories/mfsa2019-25/
• https://bugzilla.mozilla.org/show_bug.cgi?id=1388015
• https://www.mozilla.org/security/advisories/mfsa2019-25/

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