Cisco Enterprise Chat and Email Lite Agent File Upload Vulnerability_CVE-2026-20172

{
    "lastseen": "",
    "description": "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. ",
    "published": "2026-05-06T16:15:37.789Z",
    "modified": "2026-05-06T16:15:37.789Z",
    "type": "cve",
    "title": "Cisco Enterprise Chat and Email Lite Agent File Upload Vulnerability",
    "source": "cisco",
    "references": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ece-lite-agent-BCgSN8eb",
    "id": "CVE-2026-20172",
    "bulletinFamily": "",
    "cwe": null,
    "cvelist": null,
    "sourceData": "Cisco Cisco Enterprise Chat and Email 11.6(1)_ES3\nCisco Cisco Enterprise Chat and Email 11.6(1)_ES4\nCisco Cisco Enterprise Chat and Email 12.0(1)_ES6\nCisco Cisco Enterprise Chat and Email 11.6(1)_ES8\nCisco Cisco Enterprise Chat and Email 12.0(1)_ES5a\nCisco Cisco Enterprise Chat and Email 11.6(1)_ES9\nCisco Cisco Enterprise Chat and Email 12.0(1)_ES6_ET1\nCisco Cisco Enterprise Chat and Email 11.6(1)_ES6\nCisco Cisco Enterprise Chat and Email 11.6(1)_ES5\nCisco Cisco Enterprise Chat and Email 12.5(1)_ET1\nCisco Cisco Enterprise Chat and Email 12.5(1)\nCisco Cisco Enterprise Chat and Email 12.5(1)_ES3_ET1\nCisco Cisco Enterprise Chat and Email 12.0(1)_ES3\nCisco Cisco Enterprise Chat and Email 11.6(1)_ES11\nCisco Cisco Enterprise Chat and Email 12.0(1)_ES4\nCisco Cisco Enterprise Chat and Email 12.0(1)_ES5\nCisco Cisco Enterprise Chat and Email 11.6(1)_ES2\nCisco Cisco Enterprise Chat and Email 11.6(1)_ES9a\nCisco Cisco Enterprise Chat and Email 11.6(1)_ES10\nCisco Cisco Enterprise Chat and Email 12.0(1)_ES1\nCisco Cisco Enterprise Chat and Email 12.0(1)\nCisco Cisco Enterprise Chat and Email 12.5(1)_ES3\nCisco Cisco Enterprise Chat and Email 12.6(1)\nCisco Cisco Enterprise Chat and Email 11.5(1)\nCisco Cisco Enterprise Chat and Email 12.0(1)_ES2\nCisco Cisco Enterprise Chat and Email 11.6(1)_ES7\nCisco Cisco Enterprise Chat and Email 12.5(1)_ES2\nCisco Cisco Enterprise Chat and Email 12.6(1)_ET1\nCisco Cisco Enterprise Chat and Email 11.6(1)\nCisco Cisco Enterprise Chat and Email 12.5(1)_ES1\nCisco Cisco Enterprise Chat and Email 12.6(1)_ET2\nCisco Cisco Enterprise Chat and Email 12.5(1)_ES3_ET2\nCisco Cisco Enterprise Chat and Email 12.0(1)_ES6_ET2\nCisco Cisco Enterprise Chat and Email 12.6(1)_ES1\nCisco Cisco Enterprise Chat and Email 12.5(1)_ES4\nCisco Cisco Enterprise Chat and Email 11.6(1)_ES12\nCisco Cisco Enterprise Chat and Email 12.6(1)_ET3\nCisco Cisco Enterprise Chat and Email 12.5(1)_ES4_ET1\nCisco Cisco Enterprise Chat and Email 12.0(1)_ES6_ET3\nCisco Cisco Enterprise Chat and Email 12.6(1)_ES1_ET1\nCisco Cisco Enterprise Chat and Email 12.6(1)_ES2\nCisco Cisco Enterprise Chat and Email 12.6_ES2_ET1\nCisco Cisco Enterprise Chat and Email 12.5(1)_ES5\nCisco Cisco Enterprise Chat and Email 12.6_ES2_ET2\nCisco Cisco Enterprise Chat and Email 12.0(1)_ES7\nCisco Cisco Enterprise Chat and Email 12.6_ES2_ET3\nCisco Cisco Enterprise Chat and Email 12.0(1)_ES7_ET1\nCisco Cisco Enterprise Chat and Email 12.5(1)_ES5_ET1\nCisco Cisco Enterprise Chat and Email 12.6_ES2_ET4\nCisco Cisco Enterprise Chat and Email 12.6(1)_ES3\nCisco Cisco Enterprise Chat and Email 11.6(1)_ES12_ET1\nCisco Cisco Enterprise Chat and Email 12.6_ES3_ET1\nCisco Cisco Enterprise Chat and Email 12.5(1)_ES6\nCisco Cisco Enterprise Chat and Email 12.6_ES3_ET2\nCisco Cisco Enterprise Chat and Email 12.6(1)_ES4\nCisco Cisco Enterprise Chat and Email 12.5(1)_ES7\nCisco Cisco Enterprise Chat and Email 12.6(1)_ES4_ET1\nCisco Cisco Enterprise Chat and Email 12.6(1)_ES5\nCisco Cisco Enterprise Chat and Email 12.6(1)_ES5_ET1\nCisco Cisco Enterprise Chat and Email 12.6(1)_ES5_ET2\nCisco Cisco Enterprise Chat and Email 12.6(1)_ES6\nCisco Cisco Enterprise Chat and Email 12.6(1)_ES6_ET1\nCisco Cisco Enterprise Chat and Email 12.5(1)_ES8\nCisco Cisco Enterprise Chat and Email 12.6(1)_ES6_ET2\nCisco Cisco Enterprise Chat and Email 12.6(1)_ES7\nCisco Cisco Enterprise Chat and Email 12.6(1)_ES8\nCisco Cisco Enterprise Chat and Email 12.6(1)_ES4_ET2\nCisco Cisco Enterprise Chat and Email 12.6(1)_ES3_ET3\nCisco Cisco Enterprise Chat and Email 12.6(1)_ES2_ET5\nCisco Cisco Enterprise Chat and Email 12.6(1)_ES1_ET2\nCisco Cisco Enterprise Chat and Email 12.6(1)_ES8_ET1\nCisco Cisco Enterprise Chat and Email 12.6(1)_ES7_ET1\nCisco Cisco Enterprise Chat and Email 12.6(1)_ES6_ET3\nCisco Cisco Enterprise Chat and Email 12.6(1)_ES5_ET3\nCisco Cisco Enterprise Chat and Email 12.5(1)_ES8_ET1\nCisco Cisco Enterprise Chat and Email 12.5(1)_ES3_ET3\nCisco Cisco Enterprise Chat and Email 12.5(1)_ES5_ET2\nCisco Cisco Enterprise Chat and Email 12.5(1)_ES6_ET1\nCisco Cisco Enterprise Chat and Email 12.5(1)_ES4_ET2\nCisco Cisco Enterprise Chat and Email 12.5(1)_ES7_ET1\nCisco Cisco Enterprise Chat and Email 12.6(1)_ES8_ET2\nCisco Cisco Enterprise Chat and Email 12.6(1)_ES9\nCisco Cisco Enterprise Chat and Email 12.6(1)_ES9_ET1\nCisco Cisco Enterprise Chat and Email 12.5(1)_ES9\nCisco Cisco Enterprise Chat and Email 12.6(1)_ES9_ET2\nCisco Cisco Enterprise Chat and Email 12.6(1)_ES9_ET3\nCisco Cisco Enterprise Chat and Email 12.6(1)_ES10\nCisco Cisco Enterprise Chat and Email 12.6(1)_ES10_ET1\nCisco Cisco Enterprise Chat and Email 15.0(1)\nCisco Cisco Enterprise Chat and Email 12.6(1)_ES11\nCisco Cisco Enterprise Chat and Email 15.0(1)_ET1\nCisco Cisco Enterprise Chat and Email 15.0(1)ES202508\nCisco Cisco Enterprise Chat and Email 12.6(1)_ES11_ET1\nCisco Cisco Enterprise Chat and Email 12.6(1)_ES11_ET2\nCisco Cisco Enterprise Chat and Email 12.6(1)_ES12\nCisco Cisco Enterprise Chat and Email 15.0(1)ES202511\nCisco Cisco Enterprise Chat and Email 12.6(1)_ES12_ET1\nCisco Cisco Enterprise Chat and Email 15.0(1)ES202511_ET1\nCisco Cisco Enterprise Chat and Email 12.5(1)_ES10",
    "sourceHref": "",
    "cvss": {
        "score": 4.3,
        "severity": "MEDIUM",
        "vector": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N",
        "version": "3.1"
    },
    "cvss2": [],
    "cvss3": {
        "version": "",
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        "baseScore": 0,
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        "confidentialityImpact": "",
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        "cvssV3": {
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    },
    "href": "",
    "category_name": "CVE",
    "post_link": "",
    "product": "Cisco Enterprise Chat and Email",
    "version": "11.6(1)_ES3",
    "vendor": "Cisco",
    "ai_description": "",
    "ai_severity": "",
    "ai_vendor": "",
    "ai_product": "",
    "ai_version": "",
    "ai_score": 0
}