Executive Summary

Informations
Name CVE-2020-26967 First vendor Publication 2020-12-09
Vendor Cve Last vendor Modification 2020-12-10

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

When listening for page changes with a Mutation Observer, a malicious web page could confuse Firefox Screenshots into interacting with elements other than those that it injected into the page. This would lead to internal errors and unexpected behavior in the Screenshots code. This vulnerability affects Firefox < 83.

Original Source

Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-26967

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 541

Sources (Detail)

Source Url
CONFIRM https://www.mozilla.org/security/advisories/mfsa2020-50/
MISC https://bugzilla.mozilla.org/show_bug.cgi?id=1665820

Alert History

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Date Informations
2020-12-10 21:23:33
  • Multiple Updates
2020-12-10 01:31:44
  • Multiple Updates
2020-12-10 01:29:45
  • Multiple Updates
2020-12-09 17:22:54
  • Multiple Updates
2020-12-09 09:23:08
  • First insertion