CVE-2026-20170: Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS) in Cisco Cisco Webex Contact Center
A vulnerability in the Desktop Agent functionality of Cisco Webex Contact Center could have allowed an unauthenticated, remote attacker to conduct cross-site scripting attacks. Cisco has addressed this vulnerability in the Cisco Webex Contact Center service, and no customer action is needed. This vulnerability existed because HTML and script content was not properly handled. Prior to this vulnerability being addressed, an attacker could have exploited this vulnerability by persuading a user to follow a malicious link. A successful exploit could have allowed the attacker to steal sensitive information from the browser, including authentication and session information.
AI Analysis
Technical Summary
This vulnerability involves improper neutralization of script-related HTML tags in Cisco Webex Contact Center's Desktop Agent, enabling basic XSS attacks. An attacker could exploit this by tricking a user into clicking a malicious link, resulting in script execution within the user's browser context. The vulnerability was fixed by Cisco within the service, eliminating the need for customer remediation.
Potential Impact
Successful exploitation could have allowed attackers to steal sensitive information from the victim's browser, including authentication tokens and session information. This could lead to unauthorized access or session hijacking. However, no known exploits are reported in the wild, and the vulnerability requires user interaction.
Mitigation Recommendations
Cisco has addressed this vulnerability in the Cisco Webex Contact Center service. No customer action is needed as the vendor manages remediation for this product. Users should ensure they are using the updated service version as provided by Cisco.
CVE-2026-20170: Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS) in Cisco Cisco Webex Contact Center
Description
A vulnerability in the Desktop Agent functionality of Cisco Webex Contact Center could have allowed an unauthenticated, remote attacker to conduct cross-site scripting attacks. Cisco has addressed this vulnerability in the Cisco Webex Contact Center service, and no customer action is needed. This vulnerability existed because HTML and script content was not properly handled. Prior to this vulnerability being addressed, an attacker could have exploited this vulnerability by persuading a user to follow a malicious link. A successful exploit could have allowed the attacker to steal sensitive information from the browser, including authentication and session information.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability involves improper neutralization of script-related HTML tags in Cisco Webex Contact Center's Desktop Agent, enabling basic XSS attacks. An attacker could exploit this by tricking a user into clicking a malicious link, resulting in script execution within the user's browser context. The vulnerability was fixed by Cisco within the service, eliminating the need for customer remediation.
Potential Impact
Successful exploitation could have allowed attackers to steal sensitive information from the victim's browser, including authentication tokens and session information. This could lead to unauthorized access or session hijacking. However, no known exploits are reported in the wild, and the vulnerability requires user interaction.
Mitigation Recommendations
Cisco has addressed this vulnerability in the Cisco Webex Contact Center service. No customer action is needed as the vendor manages remediation for this product. Users should ensure they are using the updated service version as provided by Cisco.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- cisco
- Date Reserved
- 2025-10-08T11:59:15.391Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 69dfb9f882d89c981f6ee6b4
Added to database: 4/15/2026, 4:16:56 PM
Last enriched: 4/15/2026, 4:32:10 PM
Last updated: 4/15/2026, 5:17:27 PM
Views: 4
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