cvedb.io
CVE-2023-23603
MEDIUM · CVSS 6.5
EPSS exploitation probability: 0%
Published 2023-06-02T17:15:10.823 · Last modified 2026-06-17T05:37:33.500

Summary

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.

Affected products

mozilla — firefox

Does this affect you?

Add your gear to cvedb and we'll alert you only when mozilla ships something exploited.

Check my exposure →

References

This product uses data from the NVD API but is not endorsed or certified by the NVD. Informational only; not professional security advice.