Cross-Site Scripting Vulnerability in Cisco Webex
CVE-2026-20149

6.1MEDIUM

Key Information:

Vendor

Cisco
Status
Cisco Webex Meetings
Vendor
CVE Published:
4 March 2026

Badges

👾 Exploit Exists

What is CVE-2026-20149?

A vulnerability in Cisco Webex enabled the potential for unauthenticated, remote attackers to execute cross-site scripting (XSS) attacks. This oversight stemmed from inadequate filtering of user-supplied input, making it possible for an attacker to craft a malicious link. When a targeted user followed this link, it could lead to the execution of harmful scripts in their browser. Fortunately, Cisco has remedied this issue, and no further action is required from customers.

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Affected Version(s)

Cisco Webex Meetings

References

https://sec.cloudapps.cisco.com/security/center/content/C...

CVSS V3.1

Score:
6.1
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
Required
Scope:
Changed

Timeline

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

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