CVE-2026-20172
Cisco Enterprise Chat and Email Lite Agent File Upload Vulnerability
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.
Weakness: CWE-646
Affected products
| Vendor | Product | Category | Matched by |
|---|---|---|---|
| Cisco | Cisco Contact Center | Other Products | cna-assigner |
Vendor-reported products (1)
- Cisco · Cisco Enterprise Chat and Email
Vendor advisory
cisco-sa-ece-lite-agent-BCgSN8eb
Cisco Enterprise Chat and Email Lite Agent File Upload Vulnerability
Cisco’s rating: Medium (advisory CVSS 4.3) · Published May 6, 2026
Bug ID: CSCws79262
The vendor’s rating applies to the whole advisory and can differ from this CVE’s own CVSS severity. Where this comes from