User Impersonation Affecting Firefox-ESR package, versions [,128.4)


Severity

Recommended
0.0
high
0
10

CVSS assessment made by Snyk's Security Team

    Threat Intelligence

    EPSS
    0.08% (36th percentile)

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  • Snyk ID SNYK-UNMANAGED-FIREFOXESR-8309542
  • published 29 Oct 2024
  • disclosed 29 Oct 2024
  • credit Hafiizh

How to fix?

Upgrade Firefox-ESR to version 128.4 or higher.

Overview

Affected versions of this package are vulnerable to User Impersonation due to the truncation of a long URL. An attacker can spoof the origin in a permission prompt by manipulating the URL structure to appear as a trusted source.

CVSS Scores

version 4.0
version 3.1
Expand this section

Snyk

Recommended
7.1 high
  • Attack Vector (AV)
    Network
  • Attack Complexity (AC)
    Low
  • Attack Requirements (AT)
    None
  • Privileges Required (PR)
    None
  • User Interaction (UI)
    Passive
  • Confidentiality (VC)
    High
  • Integrity (VI)
    Low
  • Availability (VA)
    None
  • Confidentiality (SC)
    None
  • Integrity (SI)
    None
  • Availability (SA)
    None