CVE-2023-23602

MediumCVSS 6.5/10Last modified Jun 17, 2026

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.

Metrics

CVSS 3.1 6.5/10CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N

Weakness enumeration

CWE-754

Affected software

No affected versions have been published.

Timeline

Published: Jun 2, 2023
Last modified: Jun 17, 2026
NVD status: Modified

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