Description MyBB before 1.8.25 allows stored XSS via nested [email] tags with MyCode (aka BBCode). Remediation References CVE-2021-27279 Related Vulnerabilities Apache Traffic Server Improper Check for Unusual or Exceptional Conditions Vulnerability (CVE-2022-37392) jQuery UI Dialog Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') Vulnerability (CVE-2010-5312) Contao Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') Vulnerability (CVE-2018-5478) WordPress Plugin copy-me Cross-Site Request Forgery (1.0.0) WordPress Plugin LetsRecover-WooCommerce Abandoned Cart Notifications Multiple SQL Injection Vulnerabilities (1.1.0) Severity Medium Classification CVE-2021-27279 CWE-707 CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N Tags Missing Update Known Vulnerabilities