Incorrect Regular Expression Affecting Firefox-ESR package, versions [,102.7)


Severity

Recommended
0.0
medium
0
10

CVSS assessment made by Snyk's Security Team. Learn more

Threat Intelligence

EPSS
0.12% (47th percentile)

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  • Snyk IDSNYK-UNMANAGED-FIREFOXESR-3244422
  • published22 Jan 2023
  • disclosed17 Jan 2023
  • creditDan Veditz

Introduced: 17 Jan 2023

CVE-2023-23603  (opens in a new tab)
CWE-185  (opens in a new tab)

How to fix?

Upgrade Firefox-ESR to version 102.7 or higher.

Overview

Affected versions of this package are vulnerable to Incorrect Regular Expression which used to filter out forbidden properties and values from style directives in calls to console.log weren't accounting for external URLs. Data could then be potentially exfiltrated from the browser.

CVSS Scores

version 3.1