CVE-2026-20117
CVE-2026-20117 is a medium-severity vulnerability in Cisco Unified Contact Center Express with a CVSS 3.x base score of 6.1. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-79.
Key facts
- Severity: Medium (CVSS 3.x base score 6.1)
- EPSS exploit prediction: 0% (11th percentile)
- Actively exploited: Not listed in CISA KEV
- EU (EUVD) id: EUVD-2026-11223
- Weakness: CWE-79
- Affected product: Cisco Unified Contact Center Express
- Published:
- Last modified:
Description
A vulnerability in the web-based management interface of Cisco Unified Contact Center Express (Unified CCX) could allow an unauthenticated, remote attacker to conduct cross-site scripting (XSS) attacks against a user of the interface. This vulnerability exists because the web-based management interface of an affected system does not sufficiently validate user-supplied input. An attacker could exploit this vulnerability by injecting malicious code into specific pages of the interface. 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.
Frequently asked questions
- What is CVE-2026-20117?
- A vulnerability in the web-based management interface of Cisco Unified Contact Center Express (Unified CCX) could allow an unauthenticated, remote attacker to conduct cross-site scripting (XSS) attacks against a user of the interface. This vulnerability exists because the web-based management interface of an affected system does not sufficiently validate user-supplied input. An attacker could exploit this vulnerability by injecting malicious code into specific pages of the interface. 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.
- How severe is CVE-2026-20117?
- CVE-2026-20117 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
- Is CVE-2026-20117 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (11th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2026-20117?
- CVE-2026-20117 affects Cisco Unified Contact Center Express. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2026-20117?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- Does CVE-2026-20117 have an EU (EUVD) identifier?
- Yes. CVE-2026-20117 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-11223.
- When was CVE-2026-20117 published?
- CVE-2026-20117 was published on 2026-03-11 and last updated on 2026-07-08.
References
Affected products (1)
- cpe:2.3:a:cisco:unified_contact_center_express:*:*:*:*:*:*:*:*
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