CVE Catalog

CVE-2026-20172

MediumCVSS 4.3
Published: Updated: Translated: NVD NIST

Exploitation Probability (EPSS)

Low risk
0.13%

2th percentile - higher than 2% of all known CVEs

Summary

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. It is due to inadequate validation of file contents during file upload operations; an attacker could upload a file containing malicious scripts or HTML code that the application makes available to other users.

Risk Assessment

An attacker with valid credentials for an account with at least the Agent role could execute malicious content in other users' browsers. This may lead to session theft or other browser-based attacks.

Recommendation

Apply Cisco fixes for Cisco ECE. Additionally, consider restricting file uploads and validating uploaded file contents.

Related vulnerabilities

Original NVD description (English source)

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. 

Vulnerability data from NVD (NIST) · CISA KEV · EPSS