Description

MyBB before 1.8.29 allows Remote Code Injection by an admin with the "Can manage settings?" permission. The Admin CP's Settings management module does not validate setting types correctly on insertion and update, making it possible to add settings of supported type "php" with PHP code, executed on Change Settings pages.

Remediation

References

CVE-2021-43281

Related Vulnerabilities

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WordPress Plugin YITH Color and Label Variations for WooCommerce Security Bypass (1.8.11)

Dolibarr Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') Vulnerability (CVE-2018-19993)

IBM RTC Server-Side Request Forgery (SSRF) Vulnerability (CVE-2020-4974)

Oracle Application Server CVE-2009-3412 Vulnerability (CVE-2009-3412)

Severity

High

Classification

CVE-2021-43281 CWE-94 CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Tags

Missing Update Known Vulnerabilities