Description SQL Injection vulnerablity in MyBB before 1.8.26 via theme properties included in theme XML files. Remediation References CVE-2021-27890 Related Vulnerabilities WordPress Plugin NotificationX-WooCommerce Sales Notification Popup, Custom & Live Sales Notification, FOMO, Social Proof, Announcement Banner & Sticky Notification Bar SQL Injection (2.3.11) Drupal Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') Vulnerability (CVE-2020-13668) ReviveAdserver Exposure of Sensitive Information to an Unauthorized Actor Vulnerability (CVE-2015-7368) osTicket Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') Vulnerability (CVE-2023-1317) WordPress Plugin 2 Click Social Media Buttons 'xing-url' Parameter Cross-Site Scripting (0.32.2) Severity High Classification CVE-2021-27890 CWE-138 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H Tags Missing Update Known Vulnerabilities