Origin Validation Error Affecting Firefox package, versions [,139)


Severity

Recommended
0.0
medium
0
10

CVSS assessment by Snyk's Security Team. Learn more

Threat Intelligence

EPSS
0.02% (3rd percentile)

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  • Snyk IDSNYK-UNMANAGED-FIREFOX-10292525
  • published2 Jun 2025
  • disclosed27 May 2025
  • creditterjanq

Introduced: 27 May 2025

NewCVE-2025-5263  (opens in a new tab)
CWE-346  (opens in a new tab)

How to fix?

Upgrade Firefox to version 139 or higher.

Overview

Affected versions of this package are vulnerable to Origin Validation Error due to improper isolation of error handling mechanisms for script execution.

CVSS Base Scores

version 4.0
version 3.1