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Medium severity4.1NVD Advisory· Published Feb 4, 2021· Updated Jun 17, 2026

CVE-2021-1221

CVE-2021-1221

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.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

9
  • Cisco Systems, Inc./Webex Meetings2 versions
    cpe:2.3:a:cisco:webex_meetings:*:*:*:*:*:*:*:*+ 1 more
    • cpe:2.3:a:cisco:webex_meetings:*:*:*:*:*:*:*:*range: <41.1.0
    • (no CPE)
  • Cisco Systems, Inc./Webex Meetings Server6 versions
    cpe:2.3:a:cisco:webex_meetings_server:*:*:*:*:*:*:*:*+ 5 more
    • cpe:2.3:a:cisco:webex_meetings_server:*:*:*:*:*:*:*:*range: <3.0
    • cpe:2.3:a:cisco:webex_meetings_server:3.0:-:*:*:*:*:*:*
    • cpe:2.3:a:cisco:webex_meetings_server:3.0:maintenance_release3_security_patch4:*:*:*:*:*:*
    • cpe:2.3:a:cisco:webex_meetings_server:4.0:-:*:*:*:*:*:*
    • cpe:2.3:a:cisco:webex_meetings_server:4.0:maintenance_release3_security_patch3:*:*:*:*:*:*
    • (no CPE)range: n/a
  • Cisco Systems, Inc./Webex Meetings Server Softwarellm-create

Patches

Vulnerability mechanics

References

1

News mentions

0

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