CVE-2023-41362

high

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.

References

https://mybb.com/versions/1.8.36/

https://github.com/mybb/mybb/security/advisories/GHSA-pr74-wvp3-q6f5

https://github.com/mybb/mybb/commit/a43a6f22944e769a6eabc58c39e7bc18c1cab4ca.patch

https://blog.sorcery.ie/posts/mybb_acp_rce/

Details

Source: Mitre, NVD

Published: 2023-08-29

Updated: 2026-06-17

Risk Information

CVSS v2

Base Score: 8.3

Vector: CVSS2#AV:N/AC:L/Au:M/C:C/I:C/A:C

Severity: High

CVSS v3

Base Score: 7.2

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