CVE-2022-20863 Cisco Webex Meetings App Character Interface Manipulation Vulnerability
An attacker can manipulate link displays in Cisco Webex Meetings to conduct phishing or spoofing attacks via improper character rendering.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2022-20863?
CVE-2022-20863 is a medium-severity cross-site scripting vulnerability in Cisco Webex Meetings Desktop App, published on 8 Sep 2022. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
A vulnerability in the messaging interface of Cisco Webex App, formerly Webex Teams, could allow an unauthenticated, remote attacker to manipulate links or other content within the messaging interface. This vulnerability exists because the affected software does not properly handle character rendering. An attacker could exploit this vulnerability by sending messages within the application interface. A successful exploit could allow the attacker to modify the display of links or other content within the interface, potentially allowing the attacker to conduct phishing or spoofing attacks.
Weakness: CWE-450
Which versions are affected by CVE-2022-20863?
It affects 1 product.
Products include Cisco Webex Teams.
How do I fix CVE-2022-20863?
No fix has been published for CVE-2022-20863 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-2022-20863 being exploited?
There is no known exploitation of CVE-2022-20863 in the wild and no public exploit code.
Other vulnerabilities in Cisco Webex Meetings Desktop App
- CVE-2025-20236 Cisco Webex App Client-Side Remote Code Execution Vulnerability
- CVE-2018-0387 Code injection in Cisco Webex Teams unknown
- CVE-2018-0436 Cisco Webex Teams Information Disclosure and Modification Vulnerability
- CVE-2020-3535 Cisco Webex Teams Client for Windows DLL Hijacking Vulnerability
- CVE-2019-1636 Cisco Webex Teams URI Handler Insecure Library Loading Vulnerability
Sources
Also known as GHSA-hh7x-5f4p-r457.