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Advisory severityMedium6.1Cisco Updated

Medium [CVE-2026-76419] Cisco Unified Communications Manager Cross-Site Scripting Vulnerability

This medium-severity Cisco advisory covers CVE-2026-76419 affecting Unified Communications Manager.

Aggregated and source-linked by VulniPulse. Data sources, validation and limitations.

cisco-sa-cucm-xss-5mQn2U5z Source published Source updated

VulniPulse record published Record updated

CVE-2026-76419
Affected products & platforms
CiscoUnified Communications
Open source advisory

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Summary

A vulnerability in the web-based management interface of Cisco Unified Communications Manager (Unified CM) and Cisco Unified Communications Manager Session Management Edition (Unified CM SME) could allow an unauthenticated, remote attacker to conduct a cross-site scripting (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 of the interface 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.

Cisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability.

Affected versions
  • Scope: At the time of publication, this vulnerability affected Cisco Unified CM and Cisco Unified CM SME, regardless of device configuration.
  • 14 — Migrate to a fixed release
  • Release 15 (first fixed: 15SU5)

Official advisory · high-confidence parse· fetched 10 hours ago·verify at source

Fixed versions
  • 15SU5

Official advisory · high-confidence parse· fetched 10 hours ago·verify at source

Mitigation checklist

Recommended fix / mitigation
  • Upgrade to the first fixed release for your train per the Fixed Releases table in this advisory.
  • Release 14: migrate to a fixed release.
  • Release 15: upgrade to 15SU5.
Workaround status
  • There are no workarounds that address this vulnerability.

Official advisory · high-confidence parse· fetched 10 hours ago·verify at source

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