CVE-2021-43281

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.

CVSS v3 7.2 HIGH
CVSS v2.0 6.5 MEDIUM

7.2^/10

CVSS v3 : HIGH

V3 Legend

Vector :

Exploitability : 1.2 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required HIGH

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

6.5^/10

CVSS v2.0 : MEDIUM

V2 Legend

Vector : AV:N/AC:L/Au:S/C:P/I:P/A:P

Exploitability : 8.0 / Impact : 6.4

Access Vector NETWORK

Access Complexity LOW

Authentication SINGLE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

References

Link	Resource
https://github.com/mybb/mybb/security/advisories/GHSA-8gxx-vmr9-h39p	Patch Release Notes Third Party Advisory
https://github.com/mybb/mybb/security/advisories/GHSA-8gxx-vmr9-h39p	Patch Release Notes Third Party Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:mybb:mybb:*:*:*:*:*:*:*:*

History

21 Nov 2024, 06:28

Type	Values Removed	Values Added
References	~~() https://github.com/mybb/mybb/security/advisories/GHSA-8gxx-vmr9-h39p - Patch, Release Notes, Third Party Advisory~~	() https://github.com/mybb/mybb/security/advisories/GHSA-8gxx-vmr9-h39p - Patch, Release Notes, Third Party Advisory

Information

Published : 2021-11-04 18:15

Updated : 2024-11-21 06:28

NVD link : CVE-2021-43281

Mitre link : CVE-2021-43281

CVE.ORG link : CVE-2021-43281

JSON object : View

Products Affected

mybb

mybb

CWE

CWE-94

Improper Control of Generation of Code ('Code Injection')

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7.2 /10