CVE-2023-23602

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.

Affected Platforms

Weakness Type

CWE-754, CWE-754

References

• https://bugzilla.mozilla.org/show_bug.cgi?id=1800890
• https://www.mozilla.org/security/advisories/mfsa2023-01/
• https://www.mozilla.org/security/advisories/mfsa2023-02/
• https://www.mozilla.org/security/advisories/mfsa2023-03/
• https://bugzilla.mozilla.org/show_bug.cgi?id=1800890
• https://www.mozilla.org/security/advisories/mfsa2023-01/