Input validation error in Cisco Webex Meetings and Cisco WebEx Meetings Server - CVE-2021-1221
Published: February 4, 2021
Vulnerability identifier: #VU50317
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2021-1221
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Cisco Systems, Inc
Affected software:
Cisco Webex Meetings
Cisco WebEx Meetings Server
Cisco Webex Meetings
Cisco WebEx Meetings Server
Detailed vulnerability description
The vulnerability allows a remote attacker to inject a hyperlink into a meeting invitation email.
The vulnerability exists due to insufficient validation of user-supplied input in the user interface. A remote authenticated attacker can generate a Webex Meetings invitation email that contains a link to a destination of their choosing.
How to mitigate CVE-2021-1221
Install updates from vendor's website.