VULNERABILITY INTELLIGENCE

CVE-2020-15665

CVSS score4.3 MEDIUM

EPSS probability0.69%

CISA KEVNot currently listed

Published2020-10-01

Last modified2026-06-17

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

Description

Firefox did not reset the address bar after the beforeunload dialog was shown if the user chose to remain on the page. This could have resulted in an incorrect URL being shown when used in conjunction with other unexpected browser behaviors. This vulnerability affects Firefox < 80.

Weakness classification

nvd@nist.gov: NVD-CWE-Other

Primary references

security@mozilla.org — Exploit, Issue Tracking, Vendor Advisory
security@mozilla.org — Release Notes, Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108 — Exploit, Issue Tracking, Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108 — Release Notes, Vendor Advisory