Cloudanix VulnDB

CVE-2026-45129

Medium · 4.6

CVSS

4.6

EPSS

0.2%

Published

Aug 18, 2026

CISA due date

—

The record

MyBB is free and open source forum software. Prior to 1.8.40, the Admin CP Recovery Codes module does not validate requests correctly, allowing same-site attackers to rotate a victim administrator's recovery codes with a specially crafted URL. The Admin CP Home, Preferences, Recovery Codes action=recovery_codes page regenerates Two-Factor Authentication recovery codes in mybb_adminoptions.recovery_codes on GET requests without request forgery protection. The uniquely identifying implementation details include admin/modules/home/preferences.php. This issue is fixed in version 1.8.40.

Affected packages

Ecosystem Package Introduced Fixed

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