CVE-2021-43281

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.

Category

7.2
CVSS
Severity: High
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.73% Top 30%
Third-Party Advisory github.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://github.com/mybb/mybb/security/advisories/GHSA-8gxx-vmr9-h39p release notes third party advisory patch

Frequently Asked Questions

What is the severity of CVE-2021-43281?
CVE-2021-43281 has been scored as a high severity vulnerability.
How to fix CVE-2021-43281?
To fix CVE-2021-43281, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2021-43281 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2021-43281 is being actively exploited. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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