EPSS
Percentile
41.8%
Cross-site scripting (XSS) vulnerabilities in Moodle CMS on or before 3.1.2 allow remote attackers to inject arbitrary web script or HTML via the s_additionalhtmlhead, s_additionalhtmltopofbody, and s_additionalhtmlfooter parameters.
nvd.nist.gov/vuln/detail/CVE-2016-9188
packetstormsecurity.com/files/139466/Moodle-CMS-3.1.2-Cross-Site-Scripting-File-Upload.html
web.archive.org/web/20210123190812/www.securityfocus.com/bid/94189