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.
References
| Link | Resource |
|---|---|
| https://bugzilla.mozilla.org/show_bug.cgi?id=1800890 | Issue Tracking Permissions Required Vendor 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=1800890 | Issue Tracking Permissions Required Vendor 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=1800890 | Issue Tracking Permissions Required Vendor Advisory |
Configurations
Configuration 1 (hide)
|
History
18 Dec 2025, 16:15
| Type | Values Removed | Values Added |
|---|---|---|
| Summary | (en) 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. |
10 Jan 2025, 19:15
| Type | Values Removed | Values Added |
|---|---|---|
| References | () https://bugzilla.mozilla.org/show_bug.cgi?id=1800890 - Issue Tracking, Permissions Required, Vendor Advisory |
21 Nov 2024, 07:46
| Type | Values Removed | Values Added |
|---|---|---|
| References | () https://bugzilla.mozilla.org/show_bug.cgi?id=1800890 - Issue Tracking, Permissions Required, Vendor Advisory | |
| References | () https://www.mozilla.org/security/advisories/mfsa2023-01/ - Vendor Advisory | |
| References | () https://www.mozilla.org/security/advisories/mfsa2023-02/ - Vendor Advisory | |
| References | () https://www.mozilla.org/security/advisories/mfsa2023-03/ - Vendor Advisory |
Information
Published : 2023-06-02 17:15
Updated : 2025-12-18 16:15
NVD link : CVE-2023-23602
Mitre link : CVE-2023-23602
CVE.ORG link : CVE-2023-23602
JSON object : View
Products Affected
CWE
CWE-754
Improper Check for Unusual or Exceptional Conditions