CVE-2026-76419
Cisco Unified Communications Manager Cross-Site Scripting Vulnerability
What happened?
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.
Affected software and versions
| Software | Version information | Fixed version |
|---|---|---|
| Cisco Unified Communications ManagerCisco | affected: 14; affected: 14SU1; affected: 14SU2; affected: 14SU3; affected: 15; affected: 15SU1; affected: 14SU4; affected: 14SU4a; affected: 15SU1a; affected: 15SU2; affected: 15.0.1.13010-1; affected: 15.0.1.13011-1; affected: 15.0.1.13012-1; affected: 15.0.1.13013-1; affected: 15.0.1.13014-1; affected: 15.0.1.13015-1; affected: 15.0.1.13016-1; affected: 15.0.1.13017-1; affected: 15SU3a; affected: 14SU5; affected: 15SU4; affected: 15SU4a; affected: 14SU6 | See vendor advisory |
Version information comes from the source record and can include unaffected products and exceptions. Distribution packages may contain backported fixes: an older upstream version alone does not prove a server is affected.
Is it being exploited?
This CVE was not listed in the CISA catalogue at our last retrieval. This does not establish that exploitation is absent.
How to respond
- Confirm the product, installed package version, and any configuration requirements in the vendor advisory.
- Follow the vendor’s remediation or workaround guidance in the references below. Structured fixed-version data is unavailable here; the publisher’s description may include a fix or workaround.
- Restart affected services if required, then verify the running version. Known exploitation may warrant investigation as well as patching.