Description In Moodle 2.x and 3.x, there is incorrect sanitization of attributes in forums. Remediation References CVE-2017-2576 Related Vulnerabilities WordPress 4.7.x Cross-Domain Flash Injection Vulnerability (4.7 - 4.7.8) MySQL CVE-2018-2762 Vulnerability (CVE-2018-2762) WordPress Plugin MDC Private Message Cross-Site Scripting (1.0.0) OpenSSL Use of a Broken or Risky Cryptographic Algorithm Vulnerability (CVE-2021-23839) Moodle CVE-2021-36394 Vulnerability (CVE-2021-36394) Severity Medium Classification CVE-2017-2576 CWE-20 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N Tags Missing Update Known Vulnerabilities