CVE-2020-15658

MediumCVSS 6.5/10Last modified Jun 17, 2026

Description

The code for downloading files did not properly take care of special characters, which led to an attacker being able to cut off the file ending at an earlier position, leading to a different file type being downloaded than shown in the dialog. This vulnerability affects Firefox ESR < 78.1, Firefox < 79, and Thunderbird < 78.1.

Metrics

CVSS 3.1 6.5/10CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N

Weakness enumeration

CWE-754

Affected software

No affected versions have been published.

Timeline

Published: Aug 10, 2020
Last modified: Jun 17, 2026
NVD status: Modified

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