Vulnerability 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.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Mozilla | Firefox | < 109.0 |
| Mozilla | Firefox Esr | < 102.7 |
| Mozilla | Thunderbird | < 102.7 |
Related Weaknesses (CWE)
References
- https://bugzilla.mozilla.org/show_bug.cgi?id=1800832Issue TrackingPermissions RequiredVendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2023-01/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2023-02/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2023-03/Vendor Advisory
- https://bugzilla.mozilla.org/show_bug.cgi?id=1800832Issue TrackingPermissions RequiredVendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2023-01/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2023-02/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2023-03/Vendor Advisory
FAQ
What is CVE-2023-23603?
CVE-2023-23603 is a vulnerability with a CVSS score of 6.5 (MEDIUM). 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 ...
How severe is CVE-2023-23603?
CVE-2023-23603 has been rated MEDIUM with a CVSS base score of 6.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2023-23603?
Check the references section above for vendor advisories and patch information. Affected products include: Mozilla Firefox, Mozilla Firefox Esr, Mozilla Thunderbird.