Cisco Crosswork Network Change Automation up to 7.2.0 Web-based Management Interface injection

Summaryinfo

A vulnerability has been found in Cisco Crosswork Network Change Automation and classified as critical. This vulnerability affects unknown code of the component Web-based Management Interface. This manipulation causes injection. This vulnerability is tracked as CVE-2026-20220. The attack is possible to be carried out remotely. No exploit exists. The affected component should be upgraded.

Detailsinfo

A vulnerability was found in Cisco Crosswork Network Change Automation. It has been declared as critical. Affected by this vulnerability is an unknown part of the component Web-based Management Interface. The manipulation with an unknown input leads to a injection vulnerability. The CWE definition for the vulnerability is CWE-74. The product constructs all or part of a command, data structure, or record using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify how it is parsed or interpreted when it is sent to a downstream component. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

A vulnerability in the web-based management interface of Cisco Crosswork Network Controller could allow an authenticated, remote attacker to execute arbitrary commands on an affected device. This vulnerability is due to insufficient input validation in the configuration template engine of the web-based management interface. An attacker could exploit this vulnerability by sending a crafted request to the affected device. A successful exploit could allow the attacker to execute arbitrary commands on the underlying operating system in limited areas of the file system. This vulnerability affects only areas of the operating system for which the template user has write permissions.  To exploit this vulnerability, the attacker must have valid template user credentials with write permissions. Template users with read permissions cannot exploit this vulnerability. 

It is possible to read the advisory at sec.cloudapps.cisco.com. This vulnerability is known as CVE-2026-20220 since 10/08/2025. The exploitation appears to be easy. The attack can be launched remotely. The technical details are unknown and an exploit is not publicly available. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 06/17/2026). The attack technique deployed by this issue is T1055 according to MITRE ATT&CK.

Upgrading eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2026-37750). Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Type

• Automation Software

Vendor

• Cisco

Name

• Crosswork Network Change Automation

Version

• 1.0.0
• 2.0.0
• 2.0.1
• 2.0.2
• 3.0.0
• 3.0.1
• 3.0.2
• 3.0.3
• 4.0.0
• 4.1.0
• 4.1.1
• 4.1.2
• 4.1.3
• 4.1.4
• 4.5.0
• 4.5.1
• 4.5.2
• 5.0.0
• 5.0.1
• 5.0.2
• 5.0.3
• 5.0.4
• 5.0.5
• 6.0.0
• 6.0.2
• 6.0.3
• 6.0.4
• 7.0.0
• 7.0.1
• 7.0.2
• 7.0.3
• 7.0.4
• 7.0.5
• 7.1.0
• 7.1.1
• 7.1.2
• 7.2.0

License

• commercial

Website

• Vendor: https://www.cisco.com/

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