Medium [CVE-2026-20149] Cisco Webex Services Cross-Site Scripting Vulnerability
This medium-severity Cisco advisory covers CVE-2026-20149 affecting Cisco Webex Meetings.
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Summary
A vulnerability in Cisco Webex could have allowed an unauthenticated, remote attacker to conduct a cross-site scripting (XSS) attack. Cisco has addressed this vulnerability, and no customer action is needed.
This vulnerability was due to improper filtering of user-supplied input. Prior to this vulnerability being addressed, an attacker could have exploited this vulnerability by persuading a user to follow a malicious link.
A successful exploit could have allowed the attacker to conduct an XSS attack against the targeted user. As mentioned, Cisco has addressed this vulnerability in the Cisco…
Affected product named by the advisory: Cisco Webex Meetings.
- Scope: This vulnerability affected Cisco Webex, which is cloud based.
Official advisory · high-confidence parse· fetched 2 months ago·verify at source
Fixed versions
No fixed release is recorded yet. That does not prove no patch exists — confirm against the vendor advisory.
Official advisory · high-confidence parse· fetched 2 months ago·verify at source
Mitigation checklist
- There are no workarounds that address this vulnerability.
Official advisory · high-confidence parse· fetched 2 months ago·verify at source
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