CVE-2021-43281
HIGH
7.2
CVSS Score
Published: November 4, 2021 at 05:42 PM UTC
Updated: June 17, 2026 at 04:10 AM UTC
1 product affected across 1 vendorMybb
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Severity
HIGH7.2
Exploit prediction
EPSS 1%
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
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
Patch and advisory references
References (1)
x_refsource_CONFIRMPatchRelease NotesThird Party Advisory
Source: [email protected]
https://github.com/mybb/mybb/security/advisories/GHSA-8gxx-vmr9-h39pCVSS
- Attack Vector
- NETWORK
- Complexity
- LOW
- Privileges
- HIGH
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality
- HIGH
- Integrity
- HIGH
- Availability
- HIGH
Vector?
Quick Info
StatusMODIFIED
CWE
CWE-94
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