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CVE-2023-23602

Date: June 2, 2023

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, Thunderbird < 102.7, and Firefox ESR < 102.7.

Language: C++

Severity Score

Related Resources (8)

https://nvd.nist.gov/vuln/detail/CVE-2023-23602
https://www.mozilla.org/security/advisories/mfsa2023-02/
https://www.mozilla.org/security/advisories/mfsa2023-01/
https://bugzilla.mozilla.org/show_bug.cgi?id=1800890
https://www.mozilla.org/security/advisories/mfsa2023-03/
https://security-tracker.debian.org/tracker/CVE-2023-23602
https://access.redhat.com/security/cve/CVE-2023-23602
https://www.mend.io/vulnerability-database/CVE-2023-23602

Severity Score

Weakness Type (CWE)

Improper Check for Unusual or Exceptional Conditions

CWE-754

CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): LOW
Privileges Required (PR): NONE
User Interaction (UI): REQUIRED
Scope (S): UNCHANGED
Confidentiality (C): NONE
Integrity (I): HIGH
Availability (A): NONE

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