Back to search
CVE-2023-23603
Published: Jun 2, 2023
Modified: Dec 18, 2025
PUBLISHED
Description
Regular expressions 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. This vulnerability affects Firefox < 109, Firefox ESR < 102.7, and Thunderbird < 102.7.
| Vendor | Product | Versions |
|---|---|---|
Mozilla | Firefox | affected unspecified - < 109 |
Mozilla | Firefox ESR | affected unspecified - < 102.7 |
Mozilla | Thunderbird | affected unspecified - < 102.7 |
Security Training
Train your team to recognize and prevent security threats with our comprehensive security awareness program.
Start TrainingVulnerability Scanning
Discover vulnerabilities in your applications and infrastructure before attackers do.
Scan Now