CVE-2026-20178
MediumCVSS 4.3Exploitation Probability (EPSS)
Low risk10th percentile - higher than 10% of all known CVEs
Summary
A vulnerability in the browser-based version of Cisco Webex App could have allowed an unauthenticated, remote attacker to redirect users to a malicious webpage. Cisco has addressed this vulnerability, and no customer action is needed.
Risk Assessment
The risk to the organization involves the potential for users to be redirected to malicious sites, which could lead to data theft or system infections.
Recommendation
It is recommended to update the Cisco Webex App to the latest version to ensure protection against this vulnerability.
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Original NVD description (English source)
A vulnerability in the browser-based version of Cisco Webex App could have allowed an unauthenticated, remote attacker to redirect users to a malicious webpage. Cisco has addressed this vulnerability in the Cisco Webex App, and no customer action is needed. This vulnerability existed due to improper input validation of URL parameters in an HTTP request. Prior to this vulnerability being addressed, an attacker could have exploited this vulnerability by persuading a user to click a crafted URL. A successful exploit could have allowed the attacker to redirect a user to a malicious website.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS