Cisco Webex Meetings Cross-Site Scripting Vulnerability

🚨 SEVERITY: MEDIUM — CVSS 5.4 Security Advisory

TL;DR 📌

A medium-severity cross-site scripting (XSS) vulnerability has been identified in Cisco Webex Meetings, allowing authenticated attackers to exploit the user profile component. Cisco has addressed this issue, and no user action is required.

What happened 🕵️‍♂️

A vulnerability in the user profile component of Cisco Webex Meetings could have allowed an authenticated, remote attacker with low privileges to conduct a cross-site scripting (XSS) attack against a user of the web-based interface. This vulnerability arose due to insufficient validation of user-supplied input. An attacker could exploit this by persuading a user to click a crafted link, potentially leading to an XSS attack.

Affected products 🖥️

This vulnerability affects Cisco Webex Meetings, which is a cloud-based service.

Fixed software 🔧

Upgrade to the first fixed release in your train (or later):

Release / Product First Fixed Release Notes
1.0 Initial public release.
Cisco Webex Meetings Not specified

Workarounds 🧯

There are no workarounds that address this vulnerability.

Risk in context 🎯

The vulnerability has a CVSS score of 5.4, which is classified as Medium severity. While it requires user interaction for exploitation, the potential for an XSS attack poses risks to user data and session integrity if successfully executed.

Fast facts ⚡

  • Vulnerability Type: Cross-Site Scripting (XSS)
  • CVSS Score: 5.4 (Medium)
  • Affected Product: Cisco Webex Meetings (cloud-based)
  • Exploitation: Requires user interaction
  • Workarounds: None available

For leadership 🧭

This vulnerability carries a Medium risk rating, indicating that while it is not critical, it still warrants attention. The exposure is primarily through authenticated users who may inadvertently click on malicious links. There is no immediate remediation action required from your teams, as Cisco has already addressed the issue in their cloud service.

Now / Next / Later:

  • Now: No immediate action required; vulnerability has been fixed by Cisco.
  • Next: Monitor for any potential user reports or issues related to Webex Meetings.
  • Later: Review security policies around user training to mitigate risks associated with XSS attacks in the future.

Overall, the operational impact is minimal, with no expected configuration changes or maintenance windows needed.