Vulnerability Description
A mishandled security check when creating a WebSocket in a WebWorker caused the Content Security Policy connect-src header to be ignored. This could lead to connections to restricted origins from inside WebWorkers. 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=1800890Issue 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=1800890Issue 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=1800890Issue TrackingPermissions RequiredVendor Advisory
FAQ
What is CVE-2023-23602?
CVE-2023-23602 is a vulnerability with a CVSS score of 6.5 (MEDIUM). A mishandled security check when creating a WebSocket in a WebWorker caused the Content Security Policy connect-src header to be ignored. This could lead to connections to restricted origins from insi...
How severe is CVE-2023-23602?
CVE-2023-23602 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-2023-23602?
Check the references section above for vendor advisories and patch information. Affected products include: Mozilla Firefox, Mozilla Firefox Esr, Mozilla Thunderbird.