CVE-2021-1221
4.1 · MEDIUMOverview
CVE-2021-1221 is a medium-severity vulnerability affecting cisco webex_meetings. It was published on February 4, 2021 and has a CVSS 3.1 base score of 4.1 (MEDIUM).
This vulnerability has a CVSS 3.1 base score of 4.1, rated MEDIUM. It can be exploited remotely over the network. Some level of privileges is required for exploitation.
Technical Description
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.
Remediation
Check the references section for vendor advisories and patches from cisco. Update webex_meetings to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
Affected Products
| Vendor | Product | Versions | Status |
|---|---|---|---|
| cisco | webex_meetings | >= 0, < 41.1.0 | Affected |
| cisco | webex_meetings_server | >= 0, < 3.0 | Affected |
Frequently Asked Questions
What is CVE-2021-1221?
CVE-2021-1221 is a medium-severity vulnerability affecting cisco webex_meetings. It was published on February 4, 2021 and has a CVSS 3.1 base score of 4.1 (MEDIUM).
How severe is CVE-2021-1221?
This vulnerability has a CVSS 3.1 base score of 4.1, rated MEDIUM. It can be exploited remotely over the network. Some level of privileges is required for exploitation.
How do I fix or remediate CVE-2021-1221?
Check the references section for vendor advisories and patches from cisco. Update webex_meetings to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2021-1221?
CyberStrike's AI-powered security agents can automatically detect CVE-2021-1221 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
How CyberStrike Helps
AI agents map your attack surface to find vulnerabilities like this one.
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