Description MyBB before 1.8.25 allows stored XSS via nested [email] tags with MyCode (aka BBCode). Remediation References CVE-2021-27279 Related Vulnerabilities Grafana Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') Vulnerability (CVE-2020-11110) PHP Out-of-bounds Read Vulnerability (CVE-2020-7067) WebLogic Out-of-bounds Write Vulnerability (CVE-2020-36518) Oracle Application Server CVE-2008-1824 Vulnerability (CVE-2008-1824) WordPress Plugin ProPlayer 'pp_playlist_id' Parameter SQL Injection (4.7.7) 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