{"id":"CVE-2023-23602","state":"PUBLISHED","title":"Content Security Policy wasn't being correctly applied to WebSockets in WebWorkers","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.","publishedAt":"2023-06-02T00:00:00.000Z","updatedAt":"2025-12-18T15:22:56.025Z","severity":{"score":6.5,"label":"Medium","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N","source":"CISA-ADP"},"assigner":"mozilla","products":["Mozilla Firefox","Mozilla Firefox ESR","Mozilla Thunderbird"],"affected":[{"vendor":"Mozilla","product":"Firefox","versions":[{"version":"unspecified","status":"affected","lessThan":"109","versionType":"custom"}]},{"vendor":"Mozilla","product":"Firefox ESR","versions":[{"version":"unspecified","status":"affected","lessThan":"102.7","versionType":"custom"}]},{"vendor":"Mozilla","product":"Thunderbird","versions":[{"version":"unspecified","status":"affected","lessThan":"102.7","versionType":"custom"}]}],"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/"],"weaknesses":["CWE-754"],"ingestedAt":"2026-10-29T20:05:43.909Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2023/23xxx/CVE-2023-23602.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2023-23602","state":"PUBLISHED","datePublished":"2023-06-02T00:00:00.000Z","dateUpdated":"2025-12-18T15:22:56.025Z","assignerShortName":"mozilla","assignerOrgId":"f16b083a-5664-49f3-a51e-8d479e5ed7fe","dateReserved":"2023-01-16T00:00:00.000Z"},"containers":{"cna":{"title":"Content Security Policy wasn't being correctly applied to WebSockets in WebWorkers","descriptions":[{"lang":"en","value":"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":[{"vendor":"Mozilla","product":"Firefox","versions":[{"version":"unspecified","status":"affected","lessThan":"109","versionType":"custom"}]},{"vendor":"Mozilla","product":"Firefox ESR","versions":[{"version":"unspecified","status":"affected","lessThan":"102.7","versionType":"custom"}]},{"vendor":"Mozilla","product":"Thunderbird","versions":[{"version":"unspecified","status":"affected","lessThan":"102.7","versionType":"custom"}]}],"references":[{"url":"https://bugzilla.mozilla.org/show_bug.cgi?id=1800890"},{"url":"https://www.mozilla.org/security/advisories/mfsa2023-01/"},{"url":"https://www.mozilla.org/security/advisories/mfsa2023-02/"},{"url":"https://www.mozilla.org/security/advisories/mfsa2023-03/"}],"providerMetadata":{"shortName":"mozilla","orgId":"f16b083a-5664-49f3-a51e-8d479e5ed7fe","dateUpdated":"2025-12-18T15:22:56.025Z"},"credits":[{"lang":"en","value":"Dave Vandyke"}]},"adp":[{"title":"CVE Program Container","references":[{"url":"https://www.mozilla.org/security/advisories/mfsa2023-02/","tags":["x_transferred"]},{"url":"https://www.mozilla.org/security/advisories/mfsa2023-01/","tags":["x_transferred"]},{"url":"https://www.mozilla.org/security/advisories/mfsa2023-03/","tags":["x_transferred"]},{"url":"https://bugzilla.mozilla.org/show_bug.cgi?id=1800890","tags":["x_transferred"]}],"providerMetadata":{"shortName":"CVE","orgId":"af854a3a-2127-422b-91ae-364da2661108","dateUpdated":"2024-08-02T10:35:33.382Z"}},{"title":"CISA ADP Vulnrichment","references":[{"url":"https://bugzilla.mozilla.org/show_bug.cgi?id=1800890","tags":["exploit"]}],"metrics":[{"cvssV3_1":{"scope":"UNCHANGED","version":"3.1","baseScore":6.5,"attackVector":"NETWORK","baseSeverity":"MEDIUM","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N","integrityImpact":"HIGH","userInteraction":"REQUIRED","attackComplexity":"LOW","availabilityImpact":"NONE","privilegesRequired":"NONE","confidentialityImpact":"NONE"}},{"other":{"type":"ssvc","content":{"timestamp":"2025-01-10T18:16:34.899929Z","id":"CVE-2023-23602","options":[{"Exploitation":"poc"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-754","type":"CWE","lang":"en","description":"CWE-754 Improper Check for Unusual or Exceptional Conditions"}]}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2025-01-10T18:16:39.131Z"}}]}}}