CVE-2021-1221

Summary

CVECVE-2021-1221
StatePUBLIC
Assigner[email protected]
Source PriorityCVE Program / NVD first with legacy fallback
Published2021-02-04 17:15:00 UTC
Updated2023-11-07 03:27:00 UTC
DescriptionA 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.

Risk And Classification

Problem Types: CWE-74

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Cisco Webex Meetings All All All All
Application Cisco Webex Meetings All All All All
Application Cisco Webex Meetings Server All All All All
Application Cisco Webex Meetings Server 3.0 - All All
Application Cisco Webex Meetings Server 3.0 maintenance_release3_security_patch4 All All
Application Cisco Webex Meetings Server 4.0 - All All
Application Cisco Webex Meetings Server 4.0 maintenance_release3_security_patch3 All All
Application Cisco Webex Meetings Server All All All All
Application Cisco Webex Meetings Server 3.0 - All All
Application Cisco Webex Meetings Server 3.0 maintenance_release3_security_patch4 All All
Application Cisco Webex Meetings Server 4.0 - All All
Application Cisco Webex Meetings Server 4.0 maintenance_release3_security_patch3 All All

References

ReferenceSourceLinkTags
Cisco Webex Meetings and Cisco Webex Meetings Server Software Hyperlink Injection Vulnerability CISCO tools.cisco.com Vendor Advisory
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis
© CVE.report 2026 |

Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. It is the responsibility of user to evaluate the accuracy, completeness or usefulness of any information, opinion, advice or other content. EACH USER WILL BE SOLELY RESPONSIBLE FOR ANY consequences of his or her direct or indirect use of this web site. ALL WARRANTIES OF ANY KIND ARE EXPRESSLY DISCLAIMED. This site will NOT BE LIABLE FOR ANY DIRECT, INDIRECT or any other kind of loss.

CVE, CWE, and OVAL are registred trademarks of The MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. This site includes MITRE data granted under the following license.

CVE.report and Source URL Uptime Status status.cve.report