{"id":"CVE-2022-40956","state":"PUBLISHED","title":"When injecting an HTML base element, some requests would ignore the CSP's base-uri settings and accept the injected element's base instead. This vulnerability affects Firefox ESR <","description":"When injecting an HTML base element, some requests would ignore the CSP's base-uri settings and accept the injected element's base instead. This vulnerability affects Firefox ESR < 102.3, Thunderbird < 102.3, and Firefox < 105.","publishedAt":"2022-12-22T00:00:00.000Z","updatedAt":"2025-04-15T16:11:04.593Z","severity":{"score":6.1,"label":"Medium","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","source":"CISA-ADP"},"assigner":"mozilla","products":["Mozilla Firefox ESR","Mozilla Thunderbird","Mozilla Firefox"],"affected":[{"vendor":"Mozilla","product":"Firefox ESR","versions":[{"version":"unspecified","status":"affected","lessThan":"102.3","versionType":"custom"}]},{"vendor":"Mozilla","product":"Thunderbird","versions":[{"version":"unspecified","status":"affected","lessThan":"102.3","versionType":"custom"}]},{"vendor":"Mozilla","product":"Firefox","versions":[{"version":"unspecified","status":"affected","lessThan":"105","versionType":"custom"}]}],"references":["https://www.mozilla.org/security/advisories/mfsa2022-40/","https://www.mozilla.org/security/advisories/mfsa2022-41/","https://www.mozilla.org/security/advisories/mfsa2022-42/","https://bugzilla.mozilla.org/show_bug.cgi?id=1770094"],"weaknesses":["CWE-79"],"ingestedAt":"2026-10-29T19:50:35.280Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2022/40xxx/CVE-2022-40956.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"cveId":"CVE-2022-40956","state":"PUBLISHED","datePublished":"2022-12-22T00:00:00.000Z","dateUpdated":"2025-04-15T16:11:04.593Z","assignerShortName":"mozilla","assignerOrgId":"f16b083a-5664-49f3-a51e-8d479e5ed7fe","dateReserved":"2022-09-19T00:00:00.000Z"},"containers":{"cna":{"descriptions":[{"lang":"en","value":"When injecting an HTML base element, some requests would ignore the CSP's base-uri settings and accept the injected element's base instead. This vulnerability affects Firefox ESR < 102.3, Thunderbird < 102.3, and Firefox < 105."}],"affected":[{"vendor":"Mozilla","product":"Firefox ESR","versions":[{"version":"unspecified","status":"affected","lessThan":"102.3","versionType":"custom"}]},{"vendor":"Mozilla","product":"Thunderbird","versions":[{"version":"unspecified","status":"affected","lessThan":"102.3","versionType":"custom"}]},{"vendor":"Mozilla","product":"Firefox","versions":[{"version":"unspecified","status":"affected","lessThan":"105","versionType":"custom"}]}],"references":[{"url":"https://www.mozilla.org/security/advisories/mfsa2022-40/"},{"url":"https://www.mozilla.org/security/advisories/mfsa2022-41/"},{"url":"https://www.mozilla.org/security/advisories/mfsa2022-42/"},{"url":"https://bugzilla.mozilla.org/show_bug.cgi?id=1770094"}],"problemTypes":[{"descriptions":[{"type":"text","lang":"en","description":"Content-Security-Policy base-uri bypass"}]}],"providerMetadata":{"shortName":"mozilla","orgId":"f16b083a-5664-49f3-a51e-8d479e5ed7fe","dateUpdated":"2022-12-22T00:00:00.000Z"}},"adp":[{"title":"CVE Program Container","references":[{"url":"https://www.mozilla.org/security/advisories/mfsa2022-40/","tags":["x_transferred"]},{"url":"https://www.mozilla.org/security/advisories/mfsa2022-41/","tags":["x_transferred"]},{"url":"https://www.mozilla.org/security/advisories/mfsa2022-42/","tags":["x_transferred"]},{"url":"https://bugzilla.mozilla.org/show_bug.cgi?id=1770094","tags":["x_transferred"]}],"providerMetadata":{"shortName":"CVE","orgId":"af854a3a-2127-422b-91ae-364da2661108","dateUpdated":"2024-08-03T12:28:43.077Z"}},{"title":"CISA ADP Vulnrichment","metrics":[{"cvssV3_1":{"scope":"CHANGED","version":"3.1","baseScore":6.1,"attackVector":"NETWORK","baseSeverity":"MEDIUM","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","integrityImpact":"LOW","userInteraction":"REQUIRED","attackComplexity":"LOW","availabilityImpact":"NONE","privilegesRequired":"NONE","confidentialityImpact":"LOW"}},{"other":{"type":"ssvc","content":{"timestamp":"2025-04-15T16:10:59.351708Z","id":"CVE-2022-40956","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-79","type":"CWE","lang":"en","description":"CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')"}]}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2025-04-15T16:11:04.593Z"}}]}}}