CVE-2023-20028 Cross-site scripting in Cisco Web Security Appliance (WSA)

Medium 5.4 Published Updated

Remote attackers can execute cross-site scripting attacks against users of the Cisco Secure Email and Web management interfaces.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Over the internet
Victim action needed
A user has to click or open something
Fix
None listed

What is CVE-2023-20028?

CVE-2023-20028 is a medium-severity cross-site scripting vulnerability in Cisco Web Security Appliance, published on 28 Jun 2023. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.

Official description

Multiple vulnerabilities in the web-based management interface of Cisco AsyncOS Software for Cisco Secure Email and Web Manager; Cisco Secure Email Gateway, formerly Cisco Email Security Appliance (ESA); and Cisco Secure Web Appliance, formerly Cisco Web Security Appliance (WSA), could allow a remote attacker to conduct a cross-site scripting (XSS) attack against a user of the interface. For more information about these vulnerabilities, see the Details section of this advisory.

Weakness: CWE-79

Which versions are affected by CVE-2023-20028?

It affects 3 products.

Products include Cisco Secure Email and Web Manager, Cisco Secure Email Gateway, Cisco Web Security Appliance.

How do I fix CVE-2023-20028?

No fix has been published for CVE-2023-20028 yet. Limit exposure of the affected software until one is available.

Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.

Is CVE-2023-20028 being exploited?

There is no known exploitation of CVE-2023-20028 in the wild and no public exploit code.

All Cisco Web Security Appliance vulnerabilities

Sources

Also known as GHSA-4457-c63h-fr7m.

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