CVE-2020-26967

Description

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.

Risk Information

Base Score
6.5
MODERATE
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N
EPSS Score
Exploitation Probability
0.284

Associated Vulnerability

VulnerabilityOS Platform
Multiple Vulnerabilities are affected in Mozilla Firefox 82.0Windows
Multiple vulnerabilities are fixed in Mozilla Firefox For Mac (83.0)Mac
Multiple Vulnerabilities are affected in Mozilla Firefox for Mac 82.0Mac
Mozilla Open Source web browser (USN-4637-1) firefox_83.0+build2-0ubuntu0.18.04.2_i386.debLinux
Mozilla Open Source web browser (USN-4637-1) firefox_83.0+build2-0ubuntu0.18.04.2_amd64.debLinux
Mozilla Open Source web browser (USN-4637-1) firefox_83.0+build2-0ubuntu0.20.04.1_amd64.debLinux
Mozilla Open Source web browser (USN-4637-1) firefox_83.0+build2-0ubuntu0.20.10.1_amd64.debLinux
Mozilla Open Source web browser (USN-4637-2) firefox_83.0+build2-0ubuntu0.16.04.3_i386.debLinux
Mozilla Open Source web browser (USN-4637-2) firefox_83.0+build2-0ubuntu0.16.04.3_amd64.debLinux

Patch Details

Click to see the patches provided by ManageEngine for this CVE
Patch IDPatch Description
PATCH-343015Mozilla Firefox (132.0.2)
PATCH-607000Mozilla Firefox For Mac (124.0)
PATCH-611870Mozilla Firefox For Mac (142.0.1)

References

https://nvd.nist.gov/vuln/detail/CVE-2023-1234
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-1234