CVE-2026-20149

published 2026-03-04

CVE-2026-20149: A vulnerability in Cisco Webex could have allowed an unauthenticated, remote attacker to conduct a cross-site scripting (XSS) attack. Cisco has addressed this…

Priority P4 28 medium 6.1 CVSS 3.1

AV N AC L PR N UI R S C C L I L A N

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.

Affected

2 ranges

Vendor	Product	Version range	Fixed in
cisco	cisco_webex_meetings	—	—
cisco	webex_services	—	—

CVSS provenance

nvd v3.1 6.1 MEDIUM CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

vendor_cisco 6.1 MEDIUM

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