CVE-2017-7803

HighCVSS 7.5/10Last modified Jun 17, 2026

Description

When a page's content security policy (CSP) header contains a "sandbox" directive, other directives are ignored. This results in the incorrect enforcement of CSP. This vulnerability affects Thunderbird < 52.3, Firefox ESR < 52.3, and Firefox < 55.

Metrics

CVSS 3.0 7.5/10CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Weakness enumeration

CWE-269

Affected software

VendorProductVersions
MozillaThunderbird>= unspecified, < 52.3
MozillaFirefox ESR>= unspecified, < 52.3
MozillaFirefox>= unspecified, < 55

References

Timeline

Published
Jun 11, 2018
Last modified
Jun 17, 2026
NVD status
Modified

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CVE-2017-7803: High severity, CVSS 7.5 | Vulnix