PT-2026-37653 · Cisco · Enterprise Chat/Email

Muammar Fadhlurrohman · Published 2026-05-06 · Updated 2026-05-07 · CVE-2026-20172

Positive Technologies (AI Summary)

CVSS v3.1

4.3

Medium

Base vector

AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

Name of the Vulnerable Software and Affected Versions Cisco Enterprise Chat and Email (affected versions not specified)

Description A flaw in the Lite Agent feature of Cisco Enterprise Chat and Email (ECE) allows an authenticated remote attacker with at least Agent role credentials to perform browser-based attacks. The issue stems from inadequate validation of file contents during upload operations. An attacker can upload files containing malicious scripts or HTML code that other users can access, leading to the execution of the file contents within the victim's browser.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Weakness Enumeration

CWE-646

Related Identifiers

CVE-2026-20172

Affected Products

Enterprise Chat/Email

References · 5

• https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ece-lite-agent-BCgSN8eb · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-20172 · Security Note
• https://twitter.com/SystemTek_UK/status/2052348332467523874 · Twitter Post
• https://twitter.com/infoflowcloud/status/2052087475007365269 · Twitter Post
• https://twitter.com/CVEnew/status/2052086719420538901 · Twitter Post