CVE-2026-45127lowCWE-352

CVE-2026-45127: fallo de gravedad baja en mybb

MyBB: ACP Mass Mail draft resend CSRF

Publicada el · Actualizada el

Seguir esta CVE+ Monitorear mybb

Aviso por correo cuando entre en el KEV, tenga PoC pública o suba de nota.

8Vexday Risk Score

Sin señal de explotación. Ningún artefacto público de explotación conocido hasta ahora.

ssvc Trackcvss 3.5epss 0.2%
MyBB is free and open source forum software. Prior to 1.8.40, the ACP Mass Mail module does not validate certain requests correctly, allowing same-site attackers to create draft entries from archived entries by embedding a specially crafted URL. The Resend route in Admin CP, Users & Groups, Mass Mail, Mass Mailing Archive duplicates archived mailing entries into new drafts with mybb_massemails.status set to 0 on GET requests without request forgery protection. The uniquely identifying implementation details include Users & Groups → Mass Mail → Mass Mailing Archive, mybb_massemails.status = 0, and admin/modules/user/mass_mail.php. This issue is fixed in version 1.8.40.
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N
Productos afectados
mybb · mybb
CVEs relacionadas — mybb

En el mismo producto, de las más peligrosas a las menos.

CVE-2022-24734HIGHRemote code execution in mybbEPSS 77.8%CVE-2022-39265HIGHMail settings' command parameter injection in mybbEPSS 3.1%CVE-2026-45117CRITICALMyBB: Installer database configuration RCEEPSS 1.1%CVE-2025-48940HIGHMyBB's upgrade component vulnerable to local file inclusionEPSS 0.6%CVE-2024-23335MEDIUMBackups directory .htaccess deletion in. MyBBEPSS 0.6%CVE-2026-45734MEDIUMMyBB: Default CAPTCHA missing invalidationEPSS 0.6%