Description Cross-site Scripting vulnerability in MyBB before 1.8.26 via Custom moderator tools. Remediation References CVE-2021-27949 Related Vulnerabilities WordPress Plugin WordPress Appointment Booking and Online Scheduling by Appointy Cross-Site Scripting (2.40) WordPress 3.5 Multiple Vulnerabilities (1.5 - 3.5) WordPress Plugin Ceceppa Multilingua Cross-Site Scripting (1.5.17) MySQL CVE-2022-21478 Vulnerability (CVE-2022-21478) WordPress Plugin Verify Google Webmaster Tools Unspecified Vulnerability (1.3) Severity Medium Classification CVE-2021-27949 CWE-707 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N Tags Missing Update Known Vulnerabilities