Navigate to control panel will throw XSS window after leaving the site with JS name.

• Type: Regression Bug
• Status: Closed
• Resolution: Fixed
• Affects Version/s: 6.2.0 CE GA1, 7.0.0 M3
• Fix Version/s: 6.2.3 CE GA4, 6.2.X EE, 7.0.0 M1
• Component/s: Frontend Infrastructure, Security Vulnerability
• Labels:
  • QA-KC
  • QA-R
  • QA-TP
  • liferay-fixpack-user-interface-23-6210
• Environment: Tomcat 7.0.42 + MySQL 5.5.34. Portal master GIT ID: 9cc4997fe5920c162862c06686b88dd9549af70f.
• Branch Version/s:
  6.2.x
• Backported to Branch:
  Committed
• Story Points: 5
• Fix Priority: 4
• Git Pull Request: https://github.com/brianchandotcom/liferay-portal/pull/15685

1. Create a Site named <script>alert("123");</script> .
2. Give a page to the site.
3. View the page -> Admin -> control panel.

Expected result:
There should be no JS alert shows up.

Actual result:
It will alert JS window.

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CVSS Base Score: 7.1
CVSS Temporal Score: 5.6
CVSS Vector: (AV:N/AC:H/Au:S/C:C/I:C/A:C/E:P/RL:OF/RC:C)