Remote Code Injection in MyBB Admin Interface
CVE-2021-43281

7.2HIGH

Key Information:

Vendor

Mybb

Status
Mybb
Vendor
CVE Published:
4 November 2021

What is CVE-2021-43281?

MyBB Forum Software prior to version 1.8.29 contains a vulnerability that allows an admin with appropriate permissions to perform remote code injection. The Settings management module fails to properly validate the types of settings during insertion and updates. This oversight allows the addition of settings of the type 'php', enabling the execution of arbitrary PHP code on the Change Settings pages, thereby undermining the security of the application.

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References

https://github.com/mybb/mybb/security/advisories/GHSA-8gx...
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CVSS V3.1

Score:
7.2
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
High
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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