Vulnerability in Mozilla Firefox
CVE-2020-26955
When a user downloaded a file in Firefox for Android, if a cookie is set, it would have been re-sent during a subsequent file download operation on the same domain, regardless of whether the original and subsequent request were in private and non-private browsing modes. *Note: This issue only affected Firefox for Android. Other operating systems are unaffected.*. This vulnerability affects Firefox < 83.
EPSS: 0.008 (53.5th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N.
Affected products
- Mozilla Firefox — versions < 83
Weakness classification (CWE)
References
- security@mozilla.org (Permissions Required, x_refsource_MISC, Issue Tracking, Vendor Advisory)
- security@mozilla.org (x_refsource_CONFIRM, Vendor Advisory)
Frequently asked questions
- What is CVE-2020-26955?
- CVE-2020-26955 is a medium-severity vulnerability in Mozilla Firefox, classified under Reliance on Cookies without Validation and Integrity Checking. CVSS score: 6.5/10. Published 2020-12-09.
- How severe is CVE-2020-26955?
- Medium severity. CVSS v3 base score is 6.5 out of 10.