Description In Moodle 2.x and 3.x, text injection can occur in email headers, potentially leading to outbound spam. Remediation References CVE-2016-5013 Related Vulnerabilities Chamilo Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') Vulnerability (CVE-2021-43687) Drupal Core 9.3.x Cross-Site Scripting (9.3.0 - 9.3.18) XWiki Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') Vulnerability (CVE-2024-43400) WordPress Plugin WP to Twitter Security Bypass (3.2.19) WordPress Plugin SP Project & Document Manager Unspecified Vulnerability (2.5.7.3) Severity Medium Classification CVE-2016-5013 CWE-138 CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N Tags Missing Update Known Vulnerabilities