CVE-2021-1221 MEDIUM

CVE-2021-1221: Cisco Webex Meetings and Cisco Webex Meetings Server Software Hyperlink Injection Vulnerability

Vendor Cisco
Product Cisco WebEx Meetings Server
Weakness CWE-20 · Input validation
Published February 4, 2021
Last update November 8, 2024

CVSS base score

4.1/10
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction Required
Confidentiality None
Integrity Low

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:N/I:L/A:N

What the vulnerability does

01Description

A vulnerability in the user interface of Cisco Webex Meetings and Cisco Webex Meetings Server Software could allow an authenticated, remote attacker to inject a hyperlink into a meeting invitation email. The vulnerability is due to insufficient input validation. An attacker could exploit this vulnerability by entering a URL into a field in the user interface. A successful exploit could allow the attacker to generate a Webex Meetings invitation email that contains a link to a destination of their choosing. Because this email is sent from a trusted source, the recipient may be more likely to click the link.

Key dates

02Disclosure timeline

February 4, 2021 CVE published
November 8, 2024 Record updated