CVE-2021-1221: Input Validation
First published: Thu Feb 04 2021(Updated: )
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.
Credit: ykramarz@cisco.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Cisco Webex Meetings | <41.1.0 | |
| Cisco WebEx Meetings Server | <3.0 | |
| Cisco WebEx Meetings Server | =3.0 | |
| Cisco WebEx Meetings Server | =3.0-maintenance_release3_security_patch4 | |
| Cisco WebEx Meetings Server | =4.0 | |
| Cisco WebEx Meetings Server | =4.0-maintenance_release3_security_patch3 |
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Reference Links
Frequently Asked Questions
What is the vulnerability ID?
The vulnerability ID is CVE-2021-1221.
What is the severity of CVE-2021-1221?
The severity of CVE-2021-1221 is medium, with a severity value of 4.1.
Which software is affected by CVE-2021-1221?
The affected software includes Cisco Webex Meetings and Cisco Webex Meetings Server with certain versions.
How can an attacker exploit CVE-2021-1221?
An attacker can exploit CVE-2021-1221 by injecting a hyperlink into a meeting invitation email.
Is there a fix available for CVE-2021-1221?
Yes, Cisco has released a security advisory with the necessary updates to address CVE-2021-1221.
- collector/nvd-index
- agent/weakness
- agent/references
- agent/severity
- agent/author
- agent/tags
- agent/type
- agent/event
- agent/description
- agent/last-modified-date
- agent/softwarecombine
- agent/first-publish-date
- vendor/cisco
- canonical/cisco webex meetings
- canonical/cisco webex meetings server
- version/cisco webex meetings server/3.0
- version/cisco webex meetings server/3.0-maintenance_release3_security_patch4
- version/cisco webex meetings server/4.0
- version/cisco webex meetings server/4.0-maintenance_release3_security_patch3