Executive Summary

Informations
Name CVE-2021-23984 First vendor Publication 2021-03-31
Vendor Cve Last vendor Modification 2021-06-24

Security-Database Scoring CVSS v3

Cvss vector : CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N
Overall CVSS Score 6.5
Base Score 6.5 Environmental Score 6.5
impact SubScore 3.6 Temporal Score 6.5
Exploitabality Sub Score 2.8
 
Attack Vector Network Attack Complexity Low
Privileges Required None User Interaction Required
Scope Unchanged Confidentiality Impact None
Integrity Impact High Availability Impact None
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector : (AV:N/AC:M/Au:N/C:N/I:P/A:N)
Cvss Base Score 4.3 Attack Range Network
Cvss Impact Score 2.9 Attack Complexity Medium
Cvss Expoit Score 8.6 Authentication None Required
Calculate full CVSS 2.0 Vectors scores

Detail

A malicious extension could have opened a popup window lacking an address bar. The title of the popup lacking an address bar should not be fully controllable, but in this situation was. This could have been used to spoof a website and attempt to trick the user into providing credentials. This vulnerability affects Firefox ESR < 78.9, Firefox < 87, and Thunderbird < 78.9.

Original Source

Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-23984

CWE : Common Weakness Enumeration

% Id Name
100 % CWE-290 Authentication Bypass by Spoofing

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 541
Application 132
Application 417

Sources (Detail)

Source Url
MISC https://bugzilla.mozilla.org/show_bug.cgi?id=1693664
https://www.mozilla.org/security/advisories/mfsa2021-10/
https://www.mozilla.org/security/advisories/mfsa2021-11/
https://www.mozilla.org/security/advisories/mfsa2021-12/

Alert History

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Date Informations
2021-06-24 21:23:18
  • Multiple Updates
2021-06-05 00:22:56
  • Multiple Updates
2021-05-04 13:27:21
  • Multiple Updates
2021-05-01 09:22:54
  • Multiple Updates
2021-04-22 03:13:42
  • Multiple Updates
2021-04-05 21:23:23
  • Multiple Updates
2021-03-31 21:23:19
  • First insertion