CVE-2023-41362

Description

MyBB before 1.8.36 allows Code Injection by users with certain high privileges. Templates in Admin CP intentionally use eval, and there was some validation of the input to eval, but type juggling interfered with this when using PCRE within PHP.

Category

7.2
CVSS
Severity: High
CVSS 3.1 •
EPSS 17.50% Top 10%
Third-Party Advisory github.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://mybb.com/versions/1.8.36/ release notes
https://github.com/mybb/mybb/security/advisories/GHSA-pr74-wvp3-q6f5 third party advisory patch
https://github.com/mybb/mybb/commit/a43a6f22944e769a6eabc58c39e7bc18c1cab4ca.patch patch
https://blog.sorcery.ie/posts/mybb_acp_rce/

Frequently Asked Questions

What is the severity of CVE-2023-41362?
CVE-2023-41362 has been scored as a high severity vulnerability.
How to fix CVE-2023-41362?
To fix CVE-2023-41362, 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-2023-41362 being actively exploited in the wild?
It is possible that CVE-2023-41362 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~17% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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