CVE-2020-12394

LowCVSS 3.3/10Last modified Jun 17, 2026

Description

A logic flaw in our location bar implementation could have allowed a local attacker to spoof the current location by selecting a different origin and removing focus from the input element. This vulnerability affects Firefox < 76.

Metrics

CVSS 3.1 3.3/10CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

Affected software

Vendor	Product	Versions
Mozilla	Firefox	>= unspecified, < 76

References

https://bugzilla.mozilla.org/show_bug.cgi?id=1628288Issue Tracking, Permissions Required
https://security.gentoo.org/glsa/202005-04Third Party Advisory
https://www.mozilla.org/security/advisories/mfsa2020-16/Vendor Advisory
https://bugzilla.mozilla.org/show_bug.cgi?id=1628288Issue Tracking, Permissions Required
https://security.gentoo.org/glsa/202005-04Third Party Advisory
https://www.mozilla.org/security/advisories/mfsa2020-16/Vendor Advisory

Timeline

Published: May 26, 2020
Last modified: Jun 17, 2026
NVD status: Modified

Related CVEs from 2020

CVE-2020-123959.8Mozilla developers and community members reported memory safety bugs present in Firefox 75 and Firefox ESR 68.7. Some of these bugs showed e CVE-2020-123969.8Mozilla developers and community members reported memory safety bugs present in Firefox 75. Some of these bugs showed evidence of memory cor CVE-2020-123974.3By encoding Unicode whitespace characters within the From email header, an attacker can spoof the sender email address that Thunderbird disp CVE-2020-123987.5If Thunderbird is configured to use STARTTLS for an IMAP server, and the server sends a PREAUTH response, then Thunderbird will continue wit CVE-2020-123994.4NSS has shown timing differences when performing DSA signatures, which was exploitable and could eventually leak private keys. This vulnerab CVE-2020-12408.8A remote code execution vulnerability exists in Microsoft Excel software when the software fails to properly handle objects in memory, aka 'CVE-2020-124004.7When converting coordinates from projective to affine, the modular inversion was not performed in constant time, resulting in a possible tim CVE-2020-124014.7During ECDSA signature generation, padding applied in the nonce designed to ensure constant-time scalar multiplication was removed, resultin CVE-2020-124024.4During RSA key generation, bignum implementations used a variation of the Binary Extended Euclidean Algorithm which entailed significantly i CVE-2020-124039.1A flaw was found in the way CHACHA20-POLY1305 was implemented in NSS in versions before 3.55. When using multi-part Chacha20, it could cause CVE-2020-124044.3For native-to-JS bridging the app requires a unique token to be passed that ensures non-app code can't call the bridging functions. That tok CVE-2020-124055.3When browsing a malicious page, a race condition in our SharedWorkerService could occur and lead to a potentially exploitable crash. This vu