CVE-2017-7807

HighCVSS 8.1/10Last modified Jun 17, 2026

Description

A mechanism that uses AppCache to hijack a URL in a domain using fallback by serving the files from a sub-path on the domain. This has been addressed by requiring fallback files be inside the manifest directory. This vulnerability affects Thunderbird < 52.3, Firefox ESR < 52.3, and Firefox < 55.

Metrics

CVSS 3.0 8.1/10CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N

Weakness enumeration

CWE-20

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-2017-7807: High severity, CVSS 8.1 | Vulnix