CVE-2026-20233: medium-severity vulnerability in Cisco Webex Meetings
Cisco Webex Meetings Cross-Site Scripting Vulnerability
Published
E-mail alert when it lands in KEV, gets a public PoC or its score goes up.
13Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 6.1epss 0.2%
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.
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Affected products
Cisco · Cisco Webex MeetingsRelated CVEs — Cisco Webex Meetings
In the same product, most dangerous first.
CVE-2020-3440MEDIUMCisco Webex Meetings Desktop App for Windows Arbitrary File Overwrite VulnerabilityEPSS 2.6%CVE-2020-3194HIGHCisco Webex Network Recording Player and Cisco Webex Player Arbitrary Code Execution VulnerabilityEPSS 2.0%CVE-2021-1310MEDIUMCisco Webex Meetings Open Redirect VulnerabilityEPSS 1.6%CVE-2020-3142HIGHCisco Webex Meetings Suite and Cisco Webex Meetings Online Unauthenticated Meeting Join VulnerabilityEPSS 1.5%CVE-2019-15960MEDIUMCisco Webex Network Recording Admin Page Privilege Escalation VulnerabilityEPSS 1.1%CVE-2020-3472MEDIUMCisco Webex Meetings User Email Address Information Disclosure VulnerabilityEPSS 1.1%