CVE-2023-23603
Medium
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.
SeverityMedium
CVSS6.5
Exploit probability—
Product
Mozilla Firefox
PublishedJun 2, 2023
First seenJun 2, 2023
Weakness typeCWE-770Allocation of resources without limits
How to fix
Update
- mozilla firefox109.0 or later
- mozilla firefox_esr102.7 or later
- mozilla thunderbird102.7 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| mozilla firefox | v < 109.0 | 109.0 |
| mozilla firefox_esr | v < 102.7 | 102.7 |
| mozilla thunderbird | v < 102.7 | 102.7 |
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