Origin Validation Error Affecting Firefox package, versions [,139)
Threat Intelligence
EPSS
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
0.02% (3rd percentile)
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Test your applications- Snyk IDSNYK-UNMANAGED-FIREFOX-10292525
- published2 Jun 2025
- disclosed27 May 2025
- creditterjanq
Introduced: 27 May 2025
NewCVE-2025-5263 (opens in a new tab)Common Vulnerabilities and Exposures (CVE) are common identifiers for publicly known security vulnerabilities
Common Weakness Enumeration (CWE) is a category system for software weaknesses
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.