CVE-2026-20172CWE-646

Cisco Enterprise Chat and Email Lite Agent File Upload Vulnerability

Medium · published May 6, 2026

CVSS v3.1
4.3
EPSS
0%
Percentile
2.5
In the wild
Unconfirmed
What it is

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. 

The record
Technical detail
CVSS v3.1
4.3 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
CVSS v4.0
Not supplied
EPSS
0.00125 · 2.5th percentile
Weakness
CWE-646 · Reliance on File Name or Extension of Externally-Supplied File
Published
2026-05-06T16:15Z
EPSS history
Timeline
  • 06 MAY 16:15Z
    Cisco Enterprise Chat and Email Lite Agent File Upload Vulnerability
    cvelistv5