PT-2026-45988 · Cisco · Webex Meetings

0Xmanticore + 1 · CVE-2026-20233 · Published 2026-06-03 · Updated 2026-06-08

Positive Technologies (AI Summary)

CVSS v2.0

6.4

Medium

Base vector

AV:N/AC:L/Au:N/C:P/I:P/A:N

Name of the Vulnerable Software and Affected Versions Cisco Webex Meetings (affected versions not specified)

Description Insufficient validation of user input in the web-based user interface allows an unauthenticated remote attacker to conduct a cross-site scripting (XSS) attack. An attacker could exploit this by persuading a user to follow a malicious link, leading to the execution of arbitrary script code in the user's browser or unauthorized access to sensitive browser-based information.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

XSS

Weakness Enumeration

CWE-79

Related Identifiers

BDU:2026-08996

CVE-2026-20233

Affected Products

Webex Meetings

References · 7

• https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-webex-xss-jw3NeQzS · Vendor Advisory
• https://bdu.fstec.ru/vul/2026-08996 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2026-20233 · Security Note
• https://twitter.com/CVEnew/status/2062404855181045805 · Twitter Post
• https://t.me/cveNotify/166478 · Telegram Post
• https://twitter.com/infoflowcloud/status/2062405628140609720 · Twitter Post
• https://twitter.com/SystemTek_UK/status/2063180832890650674 · Twitter Post