Authenticated script execution via insufficient input validation
Published Mar 25, 2026 · Updated Mar 25, 2026
Cross-site scripting in Cisco Catalyst SD-WAN Manager allows remote authenticated users to execute script through a crafted link. The web-based management interface processes user input from the link without sufficient validation, allowing it to become executable script. Exploitation requires valid credentials and a user who follows the link; the script runs in the affected interface's context and can access sensitive browser-based information.
Summary
What happened
Cross-site scripting in Cisco Catalyst SD-WAN Manager allows remote authenticated users to execute script through a crafted link. The web-based management interface processes user input from the link without sufficient validation, allowing it to become executable script. Exploitation requires valid credentials and a user who follows the link; the script runs in the affected interface's context and can access sensitive browser-based information.
The record
- CVE
- CVE-2026-20108
- Published
- Mar 25, 2026
- Updated
- Mar 25, 2026
- Vendor
- ClamAV
- Product
- Cisco Catalyst SD-WAN Manager
- Classifications
- CWE-79, T1203
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- Mar 25, 2026CVE publishedPublication date reported by the CVE source.
- Mar 25, 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=20.12.1
- Affected versionversion=20.12.1_LI_Images
- Affected versionversion=20.12.2
- Affected versionversion=20.12.3
- Affected versionversion=20.12.3.1
- Affected versionversion=20.12.4
- Affected versionversion=20.12.4.1
- Affected versionversion=20.12.5
- Affected versionversion=20.12.5.1
- Affected versionversion=20.12.5.2
- Affected versionversion=20.12.5.3
- Affected versionversion=20.12.6
- Affected versionversion=20.12.6.1
- Affected versionversion=20.13.1
- Affected versionversion=20.14.1
- Affected versionversion=20.15.1
- Affected versionversion=20.15.2
- Affected versionversion=20.15.3
- Affected versionversion=20.15.3.1
- Affected versionversion=20.15.4
- Affected versionversion=20.15.4.1
- Affected versionversion=20.15.4.2
- Affected versionversion=20.16.1
- Affected versionversion=20.18.1
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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