Documents and Media file extension restriction circumvention

• Type: Bug
• Status: Closed
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 7.0 DE (7.0.10), 7.1 DXP (7.1.10), 7.2 DXP (7.2.10)
• Fix Version/s: 7.0.X EE, 7.1.x EE, 7.2.X EE
• Component/s: DM, Security Vulnerability
• Labels:
  • liferay-fixpack-de-92-7010
  • liferay-fixpack-dxp-17-7110
  • liferay-fixpack-dxp-5-7110
  • lsv
  • lsv-641
  • sev-3
• CVSS Base Score: 4.3
• CVSS Vector String: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
• 7.0 Fix Pack Version: 92
• 7.1 Fix Pack Version: 18
• 7.2 Fix Pack Version: 5

Liferay DXP 7.2, DXP 7.1 and DXP 7.0, allows an administrator to restrict the files that can be uploaded to Document and Media based on the file extension. However, a file extension using certain non-ASCII characters can circumvent this restric