XSS in Cisco Webex Meetings
CVE-2023-20133
A vulnerability in the web interface of Cisco Webex Meetings could allow an authenticated, remote attacker to conduct a stored cross-site scripting (XSS) attack against a user of the interface. This vulnerability exists because of insufficient validation of user-supplied input in Webex Events (classic) programs, email templates, and survey questions. An attacker could exploit this vulnerability by persuading a user to click a malicious link. A successful exploit could allow the attacker to execute arbitrary script code in the context of the affected interface or access sensitive, browser-based information.
Vulnerability class: XSS (Cross-Site Scripting)
EPSS: 0.006 (47.2th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N.
Affected products
- Cisco Webex Meetings — versions 39.10, 39.11, 39.6
- Cisco Webex_meetings — versions 39.6, 39.7, 39.7.4
Weakness classification (CWE)
Public proof-of-concept exploits
References
- psirt@cisco.com (Vendor Advisory)
Frequently asked questions
- What is CVE-2023-20133?
- CVE-2023-20133 is a medium-severity vulnerability in Cisco Webex Meetings, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2023-07-07.
- How severe is CVE-2023-20133?
- Medium severity. CVSS v3 base score is 5.4 out of 10.
- Is CVE-2023-20133 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.