{"id":"CVE-2020-16873","state":"PUBLISHED","title":"Xamarin.Forms Spoofing Vulnerability","description":"<p>A spoofing vulnerability manifests in Microsoft Xamarin.Forms due to the default settings on Android WebView version prior to 83.0.4103.106. This vulnerability could allow an attacker to execute arbitrary Javascript code on a target system.</p>\n<p>For the attack to be successful, the targeted user would need to browse to a malicious website or a website serving the malicious code through Xamarin.Forms.</p>\n<p>The security update addresses this vulnerability by preventing the malicious Javascript from running in the WebView.</p>","publishedAt":"2020-09-11T17:08:46.000Z","updatedAt":"2024-08-04T13:45:33.227Z","severity":{"score":4.7,"label":"Medium","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:N/A:N/E:F/RL:O/RC:C/CR:M/MAV:N/MAC:L/MPR:N/MUI:R/MS:C","source":"microsoft"},"assigner":"microsoft","products":["Microsoft xamarin.forms"],"affected":[{"vendor":"Microsoft","product":"xamarin.forms","versions":[{"version":"83.0.0","status":"affected","lessThan":"publication","versionType":"custom"}],"cpes":["cpe:2.3:a:microsoft:xamarin.forms:-:*:*:*:*:*:*:*"],"platforms":["Unknown"]}],"references":["https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-16873"],"weaknesses":[],"ingestedAt":"2026-10-29T19:46:39.756Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2020/16xxx/CVE-2020-16873.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"cveId":"CVE-2020-16873","state":"PUBLISHED","datePublished":"2020-09-11T17:08:46.000Z","dateUpdated":"2024-08-04T13:45:33.227Z","assignerShortName":"microsoft","assignerOrgId":"f38d906d-7342-40ea-92c1-6c4a2c6478c8","dateReserved":"2020-08-04T00:00:00.000Z"},"containers":{"cna":{"title":"Xamarin.Forms Spoofing Vulnerability","descriptions":[{"lang":"en-US","value":"<p>A spoofing vulnerability manifests in Microsoft Xamarin.Forms due to the default settings on Android WebView version prior to 83.0.4103.106. This vulnerability could allow an attacker to execute arbitrary Javascript code on a target system.</p>\n<p>For the attack to be successful, the targeted user would need to browse to a malicious website or a website serving the malicious code through Xamarin.Forms.</p>\n<p>The security update addresses this vulnerability by preventing the malicious Javascript from running in the WebView.</p>"}],"affected":[{"vendor":"Microsoft","product":"xamarin.forms","versions":[{"version":"83.0.0","status":"affected","lessThan":"publication","versionType":"custom"}],"cpes":["cpe:2.3:a:microsoft:xamarin.forms:-:*:*:*:*:*:*:*"],"platforms":["Unknown"]}],"references":[{"url":"https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-16873","tags":["x_refsource_MISC"]}],"metrics":[{"format":"CVSS","scenarios":[{"lang":"en-US","value":"GENERAL"}],"cvssV3_1":{"version":"3.1","baseSeverity":"MEDIUM","baseScore":4.7,"vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:N/A:N/E:F/RL:O/RC:C/CR:M/MAV:N/MAC:L/MPR:N/MUI:R/MS:C"}}],"problemTypes":[{"descriptions":[{"description":"Spoofing","lang":"en-US","type":"Impact"}]}],"providerMetadata":{"shortName":"microsoft","orgId":"f38d906d-7342-40ea-92c1-6c4a2c6478c8","dateUpdated":"2023-12-31T21:35:05.044Z"},"datePublic":"2020-09-08T07:00:00.000Z"},"adp":[{"title":"CVE Program Container","references":[{"url":"https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-16873","tags":["x_refsource_MISC","x_transferred"]}],"providerMetadata":{"shortName":"CVE","orgId":"af854a3a-2127-422b-91ae-364da2661108","dateUpdated":"2024-08-04T13:45:33.227Z"}}]}}}