6.1
/ 10
MEDIUM
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Description
A vulnerability in the web-based user interface of Cisco Webex Meetings could have allowed an unauthenticated, remote attacker to conduct a cross-site scripting (XSS) attack. Cisco has addressed this vulnerability in the Webex Meetings service, and no customer action is needed.
This vulnerability existed because of insufficient validation of user 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 execute arbitrary script code in the browser of the targeted user or access sensitive, browser-based information.
This vulnerability existed because of insufficient validation of user 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 execute arbitrary script code in the browser of the targeted user or access sensitive, browser-based information.
Basic Information
ID
CVE-2026-20233
Source
cisco
Published
Jun 3, 2026 at 16:06
Modified
Jun 3, 2026 at 17:49
Affected Product
Vendor
Cisco
Product
Cisco Webex Meetings
Version
39.7.7
Affected Versions
Cisco Cisco Webex Meetings 39.7.7
Cisco Cisco Webex Meetings 39.9
Cisco Cisco Webex Meetings 40.4.10
Cisco Cisco Webex Meetings 39.6
Cisco Cisco Webex Meetings 40.6.2
Cisco Cisco Webex Meetings 39.8.2
Cisco Cisco Webex Meetings 39.8.4
Cisco Cisco Webex Meetings 40.1
Cisco Cisco Webex Meetings 39.11
Cisco Cisco Webex Meetings 39.7.4
Cisco Cisco Webex Meetings 39.9.1
Cisco Cisco Webex Meetings 40.4
Cisco Cisco Webex Meetings 40.6
Cisco Cisco Webex Meetings 39.7
Cisco Cisco Webex Meetings 39.8
Cisco Cisco Webex Meetings 39.8.3
Cisco Cisco Webex Meetings 40.2
Cisco Cisco Webex Meetings 39.10
Cisco Cisco Webex Meetings 42.6
Cisco Cisco Webex Meetings 42.7
Cisco Cisco Webex Meetings 42.8
Cisco Cisco Webex Meetings 42.9
Cisco Cisco Webex Meetings 42.10
Cisco Cisco Webex Meetings 42.11
Cisco Cisco Webex Meetings 42.12
Cisco Cisco Webex Meetings 43.1
Cisco Cisco Webex Meetings 43.2
Cisco Cisco Webex Meetings 43.3
Cisco Cisco Webex Meetings 43.4
Cisco Cisco Webex Meetings 43.4.1
Cisco Cisco Webex Meetings 43.4.2
Cisco Cisco Webex Meetings 43.5.0
Cisco Cisco Webex Meetings 43.6.0
Cisco Cisco Webex Meetings 43.6.1
Cisco Cisco Webex Meetings 43.7
Cisco Cisco Webex Meetings 43.8
Cisco Cisco Webex Meetings 43.9
Cisco Cisco Webex Meetings 43.10
Cisco Cisco Webex Meetings 43.11
Cisco Cisco Webex Meetings 43.12
Cisco Cisco Webex Meetings 44.1
Cisco Cisco Webex Meetings 44.2
Cisco Cisco Webex Meetings 44.3
Cisco Cisco Webex Meetings 44.4
Cisco Cisco Webex Meetings 44.5
Cisco Cisco Webex Meetings 44.6
Cisco Cisco Webex Meetings 44.7
Cisco Cisco Webex Meetings 44.8
Cisco Cisco Webex Meetings 44.9
Cisco Cisco Webex Meetings 44.10
Cisco Cisco Webex Meetings 44.11
Cisco Cisco Webex Meetings 44.12
Cisco Cisco Webex Meetings 45.1
Cisco Cisco Webex Meetings 45.2
Cisco Cisco Webex Meetings 45.3
Cisco Cisco Webex Meetings 45.4
Cisco Cisco Webex Meetings 39.9
Cisco Cisco Webex Meetings 40.4.10
Cisco Cisco Webex Meetings 39.6
Cisco Cisco Webex Meetings 40.6.2
Cisco Cisco Webex Meetings 39.8.2
Cisco Cisco Webex Meetings 39.8.4
Cisco Cisco Webex Meetings 40.1
Cisco Cisco Webex Meetings 39.11
Cisco Cisco Webex Meetings 39.7.4
Cisco Cisco Webex Meetings 39.9.1
Cisco Cisco Webex Meetings 40.4
Cisco Cisco Webex Meetings 40.6
Cisco Cisco Webex Meetings 39.7
Cisco Cisco Webex Meetings 39.8
Cisco Cisco Webex Meetings 39.8.3
Cisco Cisco Webex Meetings 40.2
Cisco Cisco Webex Meetings 39.10
Cisco Cisco Webex Meetings 42.6
Cisco Cisco Webex Meetings 42.7
Cisco Cisco Webex Meetings 42.8
Cisco Cisco Webex Meetings 42.9
Cisco Cisco Webex Meetings 42.10
Cisco Cisco Webex Meetings 42.11
Cisco Cisco Webex Meetings 42.12
Cisco Cisco Webex Meetings 43.1
Cisco Cisco Webex Meetings 43.2
Cisco Cisco Webex Meetings 43.3
Cisco Cisco Webex Meetings 43.4
Cisco Cisco Webex Meetings 43.4.1
Cisco Cisco Webex Meetings 43.4.2
Cisco Cisco Webex Meetings 43.5.0
Cisco Cisco Webex Meetings 43.6.0
Cisco Cisco Webex Meetings 43.6.1
Cisco Cisco Webex Meetings 43.7
Cisco Cisco Webex Meetings 43.8
Cisco Cisco Webex Meetings 43.9
Cisco Cisco Webex Meetings 43.10
Cisco Cisco Webex Meetings 43.11
Cisco Cisco Webex Meetings 43.12
Cisco Cisco Webex Meetings 44.1
Cisco Cisco Webex Meetings 44.2
Cisco Cisco Webex Meetings 44.3
Cisco Cisco Webex Meetings 44.4
Cisco Cisco Webex Meetings 44.5
Cisco Cisco Webex Meetings 44.6
Cisco Cisco Webex Meetings 44.7
Cisco Cisco Webex Meetings 44.8
Cisco Cisco Webex Meetings 44.9
Cisco Cisco Webex Meetings 44.10
Cisco Cisco Webex Meetings 44.11
Cisco Cisco Webex Meetings 44.12
Cisco Cisco Webex Meetings 45.1
Cisco Cisco Webex Meetings 45.2
Cisco Cisco Webex Meetings 45.3
Cisco Cisco Webex Meetings 45.4