CVE-2014-2120 Cisco Adaptive Security Appliance (ASA) Cross-Site Scripting (XSS)

Exploited in the wild Medium 5.4 Published 19 Mar 2014 Updated 22 Oct 2025

Remote attackers can inject arbitrary web script or HTML into the Cisco ASA WebVPN login page, potentially compromising user sessions.

Exploited in the wild: Since 12 Nov 2024
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-2014-2120?

CVE-2014-2120 is a medium-severity cross-site scripting vulnerability in Cisco Adaptive Security Appliance Software, published on 19 Mar 2014. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.

Official description

Cross-site scripting (XSS) vulnerability in the WebVPN login page in Cisco Adaptive Security Appliance (ASA) Software allows remote attackers to inject arbitrary web script or HTML via an unspecified parameter, aka Bug ID CSCun19025.

Weakness: CWE-79

Which versions are affected by CVE-2014-2120?

It affects 1 product.

Products include Cisco Adaptive Security Appliance Software.

How do I fix CVE-2014-2120?

No fix has been published for CVE-2014-2120 yet. Limit exposure of the affected software until one is available. US federal agencies must fix it by 3 Dec 2024.

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-2014-2120 being exploited?

Yes. Attackers have exploited CVE-2014-2120 in the wild since at least 12 Nov 2024.

All Cisco Adaptive Security Appliance Software vulnerabilities

Sources

Also known as GHSA-5g9m-4pr5-x8v5.