Arbitrary Code Injection Affecting Firefox package, versions [,139)


Severity

Recommended
0.0
low
0
10

CVSS assessment by Snyk's Security Team. Learn more

Threat Intelligence

EPSS
0.02% (4th percentile)

Do your applications use this vulnerable package?

In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.

Test your applications

Snyk Learn

Learn about Arbitrary Code Injection vulnerabilities in an interactive lesson.

Start learning
  • Snyk IDSNYK-UNMANAGED-FIREFOX-10292596
  • published2 Jun 2025
  • disclosed27 May 2025
  • creditAmeen Basha M K

Introduced: 27 May 2025

NewCVE-2025-5264  (opens in a new tab)
CWE-94  (opens in a new tab)

How to fix?

Upgrade Firefox to version 139 or higher.

Overview

Affected versions of this package are vulnerable to Arbitrary Code Injection due to insufficient escaping of the newline character in the Copy as cURL feature. An attacker could execute arbitrary code on the user's system by tricking the user into using a maliciously crafted command.

CVSS Base Scores

version 4.0
version 3.1