Cisco Unified Contact Center Enterprise: Mehrere Schwachstellen ermöglichen Cross-Site Scripting
WID-SEC-2026-0193 · first 22.01.2026 · updated 22.01.2026 · CVSS 4,8
What it is about
Cisco Unified Contact Center Enterprise kombiniert Mehrkanal-Rufverteilung (ACD) mit IP-Telefonie in einer einheitlichen Lösung. Ein Angreifer kann mehrere Schwachstellen in Cisco Unified Contact Center Enterprise ausnutzen, um einen Cross-Site Scripting Angriff durchzuführen.
Under what conditions?
The BSI does not name any particular preconditions. Exploitable remotely according to the BSI.
What can happen in the worst case
An attacker could use the vulnerability to
- einen Cross-Site Scripting Angriff durchzuführen
Am I affected?
Affected according to the BSI:
- Cisco Unified Contact Center Enterprise <15.0(1)ES202511
The installed version is usually shown under “Help → About” or in the device’s admin interface.
What helps?
Update to at least:
- Cisco Unified Contact Center Enterprise 15.0(1)ES202511
Is the vulnerability already being exploited?
None of the CVEs is in the CISA catalogue of exploited vulnerabilities. That does not mean there are no attacks, only that none are documented.
Information and sources
- Original BSI advisory (WID)
- Cisco Security Advisory vom 2026-01-21 sec.cloudapps.cisco.com
CVE: CVE-2026-20055, CVE-2026-20109
Source: BSI warning and information service (CERT-Bund); CISA. The assessment of the conditions is my reading of the BSI text; the external pages are in their original language.