{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-20172","assignerOrgId":"d1c1063e-7a18-46af-9102-31f8928bc633","state":"PUBLISHED","assignerShortName":"cisco","dateReserved":"2025-10-08T11:59:15.391Z","datePublished":"2026-05-06T16:15:37.789Z","dateUpdated":"2026-05-06T17:46:04.178Z"},"containers":{"cna":{"title":"Cisco Enterprise Chat and Email Lite Agent File Upload Vulnerability","metrics":[{"format":"cvssV3_1","cvssV3_1":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N","baseScore":4.3,"baseSeverity":"MEDIUM","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"LOW","availabilityImpact":"NONE"}}],"descriptions":[{"lang":"en","value":"A vulnerability in the Lite Agent feature of Cisco Enterprise Chat and Email (ECE) could allow an authenticated, remote attacker to conduct browser-based attacks. To exploit this vulnerability, the attacker must have valid credentials for a user account with at least the role of Agent.\r\n\r\nThis vulnerability is due to inadequate validation of file contents during file upload operations. An attacker could exploit this vulnerability by uploading a file that contains malicious scripts or HTML code, which the application could make available to other users to access. A successful exploit could allow the attacker to execute the contents of that file in the browser of a user and conduct browser-based attacks. "}],"references":[{"url":"https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ece-lite-agent-BCgSN8eb","name":"cisco-sa-ece-lite-agent-BCgSN8eb"}],"exploits":[{"lang":"en","value":"The Cisco PSIRT is not aware of any public announcements or malicious use of the vulnerability that is described in this advisory."}],"source":{"advisory":"cisco-sa-ece-lite-agent-BCgSN8eb","discovery":"EXTERNAL","defects":["CSCws79262"]},"problemTypes":[{"descriptions":[{"lang":"en","description":"Reliance on File Name or Extension of Externally-Supplied File","type":"cwe","cweId":"CWE-646"}]}],"affected":[{"vendor":"Cisco","product":"Cisco Enterprise Chat and Email","versions":[{"version":"11.6(1)_ES3","status":"affected"},{"version":"11.6(1)_ES4","status":"affected"},{"version":"12.0(1)_ES6","status":"affected"},{"version":"11.6(1)_ES8","status":"affected"},{"version":"12.0(1)_ES5a","status":"affected"},{"version":"11.6(1)_ES9","status":"affected"},{"version":"12.0(1)_ES6_ET1","status":"affected"},{"version":"11.6(1)_ES6","status":"affected"},{"version":"11.6(1)_ES5","status":"affected"},{"version":"12.5(1)_ET1","status":"affected"},{"version":"12.5(1)","status":"affected"},{"version":"12.5(1)_ES3_ET1","status":"affected"},{"version":"12.0(1)_ES3","status":"affected"},{"version":"11.6(1)_ES11","status":"affected"},{"version":"12.0(1)_ES4","status":"affected"},{"version":"12.0(1)_ES5","status":"affected"},{"version":"11.6(1)_ES2","status":"affected"},{"version":"11.6(1)_ES9a","status":"affected"},{"version":"11.6(1)_ES10","status":"affected"},{"version":"12.0(1)_ES1","status":"affected"},{"version":"12.0(1)","status":"affected"},{"version":"12.5(1)_ES3","status":"affected"},{"version":"12.6(1)","status":"affected"},{"version":"11.5(1)","status":"affected"},{"version":"12.0(1)_ES2","status":"affected"},{"version":"11.6(1)_ES7","status":"affected"},{"version":"12.5(1)_ES2","status":"affected"},{"version":"12.6(1)_ET1","status":"affected"},{"version":"11.6(1)","status":"affected"},{"version":"12.5(1)_ES1","status":"affected"},{"version":"12.6(1)_ET2","status":"affected"},{"version":"12.5(1)_ES3_ET2","status":"affected"},{"version":"12.0(1)_ES6_ET2","status":"affected"},{"version":"12.6(1)_ES1","status":"affected"},{"version":"12.5(1)_ES4","status":"affected"},{"version":"11.6(1)_ES12","status":"affected"},{"version":"12.6(1)_ET3","status":"affected"},{"version":"12.5(1)_ES4_ET1","status":"affected"},{"version":"12.0(1)_ES6_ET3","status":"affected"},{"version":"12.6(1)_ES1_ET1","status":"affected"},{"version":"12.6(1)_ES2","status":"affected"},{"version":"12.6_ES2_ET1","status":"affected"},{"version":"12.5(1)_ES5","status":"affected"},{"version":"12.6_ES2_ET2","status":"affected"},{"version":"12.0(1)_ES7","status":"affected"},{"version":"12.6_ES2_ET3","status":"affected"},{"version":"12.0(1)_ES7_ET1","status":"affected"},{"version":"12.5(1)_ES5_ET1","status":"affected"},{"version":"12.6_ES2_ET4","status":"affected"},{"version":"12.6(1)_ES3","status":"affected"},{"version":"11.6(1)_ES12_ET1","status":"affected"},{"version":"12.6_ES3_ET1","status":"affected"},{"version":"12.5(1)_ES6","status":"affected"},{"version":"12.6_ES3_ET2","status":"affected"},{"version":"12.6(1)_ES4","status":"affected"},{"version":"12.5(1)_ES7","status":"affected"},{"version":"12.6(1)_ES4_ET1","status":"affected"},{"version":"12.6(1)_ES5","status":"affected"},{"version":"12.6(1)_ES5_ET1","status":"affected"},{"version":"12.6(1)_ES5_ET2","status":"affected"},{"version":"12.6(1)_ES6","status":"affected"},{"version":"12.6(1)_ES6_ET1","status":"affected"},{"version":"12.5(1)_ES8","status":"affected"},{"version":"12.6(1)_ES6_ET2","status":"affected"},{"version":"12.6(1)_ES7","status":"affected"},{"version":"12.6(1)_ES8","status":"affected"},{"version":"12.6(1)_ES4_ET2","status":"affected"},{"version":"12.6(1)_ES3_ET3","status":"affected"},{"version":"12.6(1)_ES2_ET5","status":"affected"},{"version":"12.6(1)_ES1_ET2","status":"affected"},{"version":"12.6(1)_ES8_ET1","status":"affected"},{"version":"12.6(1)_ES7_ET1","status":"affected"},{"version":"12.6(1)_ES6_ET3","status":"affected"},{"version":"12.6(1)_ES5_ET3","status":"affected"},{"version":"12.5(1)_ES8_ET1","status":"affected"},{"version":"12.5(1)_ES3_ET3","status":"affected"},{"version":"12.5(1)_ES5_ET2","status":"affected"},{"version":"12.5(1)_ES6_ET1","status":"affected"},{"version":"12.5(1)_ES4_ET2","status":"affected"},{"version":"12.5(1)_ES7_ET1","status":"affected"},{"version":"12.6(1)_ES8_ET2","status":"affected"},{"version":"12.6(1)_ES9","status":"affected"},{"version":"12.6(1)_ES9_ET1","status":"affected"},{"version":"12.5(1)_ES9","status":"affected"},{"version":"12.6(1)_ES9_ET2","status":"affected"},{"version":"12.6(1)_ES9_ET3","status":"affected"},{"version":"12.6(1)_ES10","status":"affected"},{"version":"12.6(1)_ES10_ET1","status":"affected"},{"version":"15.0(1)","status":"affected"},{"version":"12.6(1)_ES11","status":"affected"},{"version":"15.0(1)_ET1","status":"affected"},{"version":"15.0(1)ES202508","status":"affected"},{"version":"12.6(1)_ES11_ET1","status":"affected"},{"version":"12.6(1)_ES11_ET2","status":"affected"},{"version":"12.6(1)_ES12","status":"affected"},{"version":"15.0(1)ES202511","status":"affected"},{"version":"12.6(1)_ES12_ET1","status":"affected"},{"version":"15.0(1)ES202511_ET1","status":"affected"},{"version":"12.5(1)_ES10","status":"affected"}],"defaultStatus":"unknown"}],"providerMetadata":{"orgId":"d1c1063e-7a18-46af-9102-31f8928bc633","shortName":"cisco","dateUpdated":"2026-05-06T16:15:37.789Z"}},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-05-06T17:45:56.726902Z","id":"CVE-2026-20172","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-05-06T17:46:04.178Z"}}]}}