CVE-2022-20802 Cisco Enterprise Chat and Email Stored Cross-Site Scripting Vulnerability

Medium 5.4 Published 27 May 2022 Updated 6 Nov 2024

Authenticated attackers can inject malicious scripts into the Cisco ECE web interface, potentially executing code or stealing browser data.

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-2022-20802?

CVE-2022-20802 is a medium-severity cross-site scripting vulnerability in Cisco Enterprise Chat and Email, published on 27 May 2022. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.

Official description

A vulnerability in the web interface of Cisco Enterprise Chat and Email (ECE) could allow an authenticated, remote attacker to conduct a cross-site scripting (XSS) attack against a user of the interface. This vulnerability is due to insufficient validation of user-supplied input that is processed by the web interface. An attacker could exploit this vulnerability by sending a crafted HTTP request to the affected system. A successful exploit could allow the attacker to execute arbitrary code in the context of the interface or access sensitive, browser-based information. To successfully exploit this vulnerability, an attacker would need valid agent credentials.

Weakness: CWE-79

Which versions are affected by CVE-2022-20802?

It affects 1 product.

Products include Cisco Enterprise Chat and Email.

How do I fix CVE-2022-20802?

No fix has been published for CVE-2022-20802 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-2022-20802 being exploited?

There is no known exploitation of CVE-2022-20802 in the wild and no public exploit code.

Sources

Also known as GHSA-mjwp-9g5x-mxxc.