CVE-2026-20059

Summary

A vulnerability in the web-based management interface of Cisco Unity Connection could allow an unauthenticated, remote attacker to conduct a reflected XSS attack against a user of the interface.

This vulnerability exists because the web-based management interface does not properly validate user-supplied input. An attacker could exploit this vulnerability by persuading a user to click a crafted link. A successful exploit could allow the attacker to execute arbitrary script code in the context of the affected interface or access sensitive, browser-based information.

Affected Software

VendorProductVersion RangeStatus
CiscoCisco Unity Connection14affected
CiscoCisco Unity Connection14SU1affected
CiscoCisco Unity Connection14SU2affected
CiscoCisco Unity Connection14SU3affected
CiscoCisco Unity Connection14SU3aaffected
CiscoCisco Unity Connection15affected
CiscoCisco Unity Connection15SU1affected
CiscoCisco Unity Connection14SU4affected
CiscoCisco Unity Connection15SU2affected
CiscoCisco Unity Connection15SU3affected
CiscoCisco Unity Connection14SU5affected
CiscoCisco Unity Connection15SU4affected

Weaknesses

  • CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

ADP Enrichment

CISA ADP Vulnrichment

  • SSVC:
  • Exploitation: none
    • Automatable: no
    • Technical Impact: partial

References