CVE-2026-45119mediumCWE-352

CVE-2026-45119: fallo de gravedad media en mybb

MyBB: ACP UTF-8 Conversion 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.

13Vexday Risk Score

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

ssvc Trackcvss 4.6epss 0.2%
MyBB is free and open source forum software. Prior to 1.8.40, the Admin CP UTF-8 Conversion module does not validate certain requests correctly, allowing same-site attackers to alter table encoding and deny service with a specially crafted URL. The do=all control flow in admin/modules/tools/system_health.php performs ALTER TABLE operations, column rewrite phases, and fulltext index rebuilds on GET requests for the database table named by the table parameter without request verification. The uniquely identifying implementation details include GET requests without request verification. 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:L
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%