Cisco Webex App XSS via Messaging Link Rendering (CVE-2022-20863)
CVE-2022-20863 Published on September 8, 2022

Cisco Webex Meetings App Character Interface Manipulation Vulnerability
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.

Vendor Advisory NVD

Vulnerability Analysis

CVE-2022-20863 can be exploited with network access, requires user interaction. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to have no impact on confidentiality, with no impact on integrity, and no impact on availability.

Attack Vector:
NETWORK
Attack Complexity:
LOW
Privileges Required:
NONE
User Interaction:
REQUIRED
Scope:
UNCHANGED
Confidentiality Impact:
NONE
Integrity Impact:
LOW
Availability Impact:
NONE

Weakness Type

Multiple Interpretations of UI Input

The UI has multiple interpretations of user input but does not prompt the user when it selects the less secure interpretation.


Products Associated with CVE-2022-20863

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Affected Versions

Cisco Webex Meetings Desktop App Version n/a is affected by CVE-2022-20863

Exploit Probability

EPSS
0.77%
Percentile
73.27%

EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.