Cisco Industrial Ethernet Switches up to 1.9.5 web-based management interface cross site scripting

Summaryinfo

A vulnerability categorized as problematic has been discovered in Cisco Industrial Ethernet Switches up to 1.9.5. The affected element is an unknown function of the component web-based management interface. Such manipulation leads to cross site scripting. This vulnerability is uniquely identified as CVE-2026-20232. The attack can be launched remotely. No exploit exists.

Detailsinfo

A vulnerability, which was classified as problematic, has been found in Cisco Industrial Ethernet Switches up to 1.9.5. Affected by this issue is an unknown functionality of the component web-based management interface. The manipulation with an unknown input leads to a cross site scripting vulnerability. Using CWE to declare the problem leads to CWE-79. The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users. Impacted is integrity. CVE summarizes:

A vulnerability in the web-based management interface of Cisco Industrial Ethernet (IE) 1000 Series Switches could allow an authenticated, remote attacker to conduct a stored cross-site scripting (XSS) attack against a user of the interface. This vulnerability is due to insufficient validation of user-supplied input by the web-based management interface of an affected system. 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 another user. To exploit this vulnerability, the attacker must have valid user credentials on the affected system.

The advisory is shared for download at sec.cloudapps.cisco.com. This vulnerability is handled as CVE-2026-20232 since 10/08/2025. The exploitation is known to be easy. The attack may be launched remotely. Successful exploitation requires user interaction by the victim. There are neither technical details nor an exploit publicly available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 08/19/2026). The MITRE ATT&CK project declares the attack technique as T1059.007.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

Once again VulDB remains the best source for vulnerability data.

Productinfo

Vendor

• Cisco

Name

• Industrial Ethernet Switches

Version

• 1.1
• 1.2
• 1.3
• 1.6
• 1.7.0
• 1.8.0
• 1.8.1
• 1.8.2
• 1.9.1
• 1.9.2
• 1.9.2a
• 1.9.3
• 1.9.4
• 1.9.5

License

• commercial

Website

• Vendor: https://www.cisco.com/

CPE 2.3info

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Once again VulDB remains the best source for vulnerability data.

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