What is CVE-2022-20778?

CVE-2022-20778 is a vulnerability in the authentication component of Cisco Webex Meetings that could allow an unauthenticated attacker to conduct a cross-site scripting (XSS) attack against a user of the web-based interface.

What is the severity of CVE-2022-20778?

The severity of CVE-2022-20778 is medium with a CVSS score of 6.1.

How can an attacker exploit CVE-2022-20778?

An attacker can exploit CVE-2022-20778 by sending malicious code to the target user, which can execute in the user's browser and potentially steal sensitive information.

How can I protect myself from CVE-2022-20778?

To protect yourself from CVE-2022-20778, it is recommended to update to the latest version of Cisco Webex Meetings, as the vulnerability has been addressed in the patches released by Cisco.

Where can I find more information about CVE-2022-20778?

You can find more information about CVE-2022-20778 in Cisco's security advisory available at the following link: [Cisco Security Advisory](https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-webex-xss-w47AMqAk)

Vulnerability/
CVE-2022-20778

medium

6.1

CWE

21/4/2022

4/5/2022

CVE-2022-20778: XSS

First published: Thu Apr 21 2022(Updated: )

A vulnerability in the authentication component of Cisco Webex Meetings could allow an unauthenticated, remote attacker to conduct a cross-site scripting (XSS) attack against a user of the web-based interface. This vulnerability is due to insufficient validation of user-supplied input by the web-based interface of the authentication component of Cisco Webex Meetings. An attacker could exploit this vulnerability by persuading a user of the interface to click a maliciously crafted link. A successful exploit could allow the attacker to execute arbitrary script code in the context of the affected interface or access sensitive, browser-based information.

Credit: ykramarz@cisco.com

Affected Software	Affected Version	How to fix
Cisco Webex Meetings

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Reference Links

https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-webex-xss-w47AMqAk

Frequently Asked Questions

What is CVE-2022-20778?
CVE-2022-20778 is a vulnerability in the authentication component of Cisco Webex Meetings that could allow an unauthenticated attacker to conduct a cross-site scripting (XSS) attack against a user of the web-based interface.
What is the severity of CVE-2022-20778?
The severity of CVE-2022-20778 is medium with a CVSS score of 6.1.
How can an attacker exploit CVE-2022-20778?
An attacker can exploit CVE-2022-20778 by sending malicious code to the target user, which can execute in the user's browser and potentially steal sensitive information.
How can I protect myself from CVE-2022-20778?
To protect yourself from CVE-2022-20778, it is recommended to update to the latest version of Cisco Webex Meetings, as the vulnerability has been addressed in the patches released by Cisco.
Where can I find more information about CVE-2022-20778?
You can find more information about CVE-2022-20778 in Cisco's security advisory available at the following link: [Cisco Security Advisory](https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-webex-xss-w47AMqAk)

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