Cisco Unity Connection: Unauthenticated Redirect via Input Validation in Web UI
CVE-2026-20060 Published on April 15, 2026
Cisco Unity Connection Open Redirect Vulnerability
A vulnerability in the web-based management interface of Cisco Unity Connection could allow an unauthenticated, remote attacker to redirect a user to a malicious web page.
This vulnerability is due to improper input validation of HTTP request parameters. An attacker could exploit this vulnerability by persuading a user to click a crafted link. A successful exploit could allow the attacker to redirect a user to a malicious web page.
Vulnerability Analysis
CVE-2026-20060 is exploitable with network access, requires user interaction. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to have no impact on confidentiality, with no impact on integrity, and no impact on availability.
Weakness Type
What is an Open Redirect Vulnerability?
A web application accepts a user-controlled input that specifies a link to an external site, and uses that link in a Redirect. This simplifies phishing attacks. An http parameter may contain a URL value and could cause the web application to redirect the request to the specified URL. By modifying the URL value to a malicious site, an attacker may successfully launch a phishing scam and steal user credentials. Because the server name in the modified link is identical to the original site, phishing attempts have a more trustworthy appearance.
CVE-2026-20060 has been classified to as an Open Redirect vulnerability or weakness.
Products Associated with CVE-2026-20060
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Affected Versions
Cisco Unity Connection:- Version 14 is affected.
- Version 14SU1 is affected.
- Version 14SU2 is affected.
- Version 14SU3 is affected.
- Version 14SU3a is affected.
- Version 15 is affected.
- Version 15SU1 is affected.
- Version 14SU4 is affected.
- Version 15SU2 is affected.
- Version 15SU3 is affected.