Administrative XSS via unvalidated management-page input
Published Jan 21, 2026 · Updated Jan 21, 2026
Stored XSS in Cisco Packaged CCE and Unified CCE allows remote authenticated users to execute browser scripts through the management interface. The web-based management interface accepts user-supplied input on unspecified pages without validation and later renders injected code in another user's browser. Valid administrative credentials and victim interaction are required; exploitation exposes browser-based data and permits actions in the affected interface's user context.
Summary
What happened
Stored XSS in Cisco Packaged CCE and Unified CCE allows remote authenticated users to execute browser scripts through the management interface. The web-based management interface accepts user-supplied input on unspecified pages without validation and later renders injected code in another user's browser. Valid administrative credentials and victim interaction are required; exploitation exposes browser-based data and permits actions in the affected interface's user context.
The record
- CVE
- CVE-2026-20109
- Published
- Jan 21, 2026
- Updated
- Jan 21, 2026
- Vendor
- ClamAV
- Product
- Cisco Unified Contact Center Enterprise
- Classifications
- CWE-79, T1203
- Attack vector
- network
- Privileges
- admin
Timeline
How it unfolded
- Jan 21, 2026CVE publishedPublication date reported by the CVE source.
- Jan 21, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=10.5
- Affected versionversion=10.5(1)
- Affected versionversion=11.0
- Affected versionversion=11.0(1)
- Affected versionversion=11.5
- Affected versionversion=12.0(1)
- Affected versionversion=12.5(1)
- Affected versionversion=12.5(1)ES1
- Affected versionversion=12.6(1)
- Affected versionversion=12.6(1)ES1
- Affected versionversion=12.6(1)ES2
- Affected versionversion=12.6(1)ES3
- Affected versionversion=12.6(1)ES4
- Affected versionversion=12.6(1)SecurityPatch
- Affected versionversion=12.6(2)
- Affected versionversion=12.6(2)_ES
- Affected versionversion=12.6(2)ES1
- Affected versionversion=12.6(2)ES2
- Affected versionversion=12.6(2)ES3
- Affected versionversion=15.0(1)
- Affected versionversion=15.0(1)ES202508
- Affected versionversion=15.0(1)ET01
- Affected versionversion=15.0(1)_SP1
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
No public exploit references are available in this record.
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Technologies
Your stack
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Your stack
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