codelibs fess version before commit faa265b contains a XML External Entity (XXE) vulnerability in GSA XML file parser that can result in Disclosure of confidential data, denial of service, SSRF, port scanning.
CVSS 3.0CRITICAL 10.0·Network·No auth·No interaction·EPSS 0.01937·Published 2018-12-20·Fixed in 12.3.2CWE-611