CVE-2023-41362

7.2 highEPSS 2.1%

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.

Severity

CVSS 3.1

7.2 high

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

EPSS: 2.1% chance of exploitation in the next 30 days; higher than 81% of CVEs (scores of 2026-10-31)
CWE: CWE-94
Published: 2023-08-29
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

mybb:mybb

References

https://blog.sorcery.ie/posts/mybb_acp_rce/
https://github.com/mybb/mybb/commit/a43a6f22944e769a6eabc58c39e7bc18c1cab4ca.patch
https://github.com/mybb/mybb/security/advisories/GHSA-pr74-wvp3-q6f5
https://mybb.com/versions/1.8.36/
https://blog.sorcery.ie/posts/mybb_acp_rce/

Check your stack JSON