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.

This 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. 

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact None

Integrity Impact Low

Availability Impact None

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Exploitation none

Automatable no

Technical Impact partial

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
Cisco Cisco Enterprise Chat and Email unknown
Version Status Constraints
11.6(1)_ES3 affected —
11.6(1)_ES4 affected —
12.0(1)_ES6 affected —
11.6(1)_ES8 affected —
12.0(1)_ES5a affected —
11.6(1)_ES9 affected —
12.0(1)_ES6_ET1 affected —
11.6(1)_ES6 affected —
11.6(1)_ES5 affected —
12.5(1)_ET1 affected —
12.5(1) affected —
12.5(1)_ES3_ET1 affected —
12.0(1)_ES3 affected —
11.6(1)_ES11 affected —
12.0(1)_ES4 affected —
12.0(1)_ES5 affected —
11.6(1)_ES2 affected —
11.6(1)_ES9a affected —
11.6(1)_ES10 affected —
12.0(1)_ES1 affected —
12.0(1) affected —
12.5(1)_ES3 affected —
12.6(1) affected —
11.5(1) affected —
12.0(1)_ES2 affected —
11.6(1)_ES7 affected —
12.5(1)_ES2 affected —
12.6(1)_ET1 affected —
11.6(1) affected —
12.5(1)_ES1 affected —
12.6(1)_ET2 affected —
12.5(1)_ES3_ET2 affected —
12.0(1)_ES6_ET2 affected —
12.6(1)_ES1 affected —
12.5(1)_ES4 affected —
11.6(1)_ES12 affected —
12.6(1)_ET3 affected —
12.5(1)_ES4_ET1 affected —
12.0(1)_ES6_ET3 affected —
12.6(1)_ES1_ET1 affected —
12.6(1)_ES2 affected —
12.6_ES2_ET1 affected —
12.5(1)_ES5 affected —
12.6_ES2_ET2 affected —
12.0(1)_ES7 affected —
12.6_ES2_ET3 affected —
12.0(1)_ES7_ET1 affected —
12.5(1)_ES5_ET1 affected —
12.6_ES2_ET4 affected —
12.6(1)_ES3 affected —
11.6(1)_ES12_ET1 affected —
12.6_ES3_ET1 affected —
12.5(1)_ES6 affected —
12.6_ES3_ET2 affected —
12.6(1)_ES4 affected —
12.5(1)_ES7 affected —
12.6(1)_ES4_ET1 affected —
12.6(1)_ES5 affected —
12.6(1)_ES5_ET1 affected —
12.6(1)_ES5_ET2 affected —
12.6(1)_ES6 affected —
12.6(1)_ES6_ET1 affected —
12.5(1)_ES8 affected —
12.6(1)_ES6_ET2 affected —
12.6(1)_ES7 affected —
12.6(1)_ES8 affected —
12.6(1)_ES4_ET2 affected —
12.6(1)_ES3_ET3 affected —
12.6(1)_ES2_ET5 affected —
12.6(1)_ES1_ET2 affected —
12.6(1)_ES8_ET1 affected —
12.6(1)_ES7_ET1 affected —
12.6(1)_ES6_ET3 affected —
12.6(1)_ES5_ET3 affected —
12.5(1)_ES8_ET1 affected —
12.5(1)_ES3_ET3 affected —
12.5(1)_ES5_ET2 affected —
12.5(1)_ES6_ET1 affected —
12.5(1)_ES4_ET2 affected —
12.5(1)_ES7_ET1 affected —
12.6(1)_ES8_ET2 affected —
12.6(1)_ES9 affected —
12.6(1)_ES9_ET1 affected —
12.5(1)_ES9 affected —
12.6(1)_ES9_ET2 affected —
12.6(1)_ES9_ET3 affected —
12.6(1)_ES10 affected —
12.6(1)_ES10_ET1 affected —
15.0(1) affected —
12.6(1)_ES11 affected —
15.0(1)_ET1 affected —
15.0(1)ES202508 affected —
12.6(1)_ES11_ET1 affected —
12.6(1)_ES11_ET2 affected —
12.6(1)_ES12 affected —
15.0(1)ES202511 affected —
12.6(1)_ES12_ET1 affected —
15.0(1)ES202511_ET1 affected —
12.5(1)_ES10 affected —

No data.

No data.

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No data.

Project Subscriptions

No data.

Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ece-lite-agent-BCgSN8eb cve-icon cve-icon
History

Wed, 06 May 2026 18:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Wed, 06 May 2026 16:45:00 +0000

Type Values Removed Values Added
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. This 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. 
Title Cisco Enterprise Chat and Email Lite Agent File Upload Vulnerability
Weaknesses CWE-646
References
Metrics cvssV3_1

{'score': 4.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: cisco

Published:

Updated: 2026-05-06T17:46:04.178Z

Reserved: 2025-10-08T11:59:15.391Z

Link: CVE-2026-20172

cve-icon Vulnrichment

Updated: 2026-05-06T17:45:59.805Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-05-06T17:16:20.880

Modified: 2026-05-06T18:59:53.230

Link: CVE-2026-20172

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-05-06T17:30:08Z

Weaknesses