CVE-2023-41362

moderate-risk
Published 2023-08-29

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.

Do I need to act?

!
23.5% chance of exploitation in next 30 days
EPSS score — higher than 76% of all CVEs
-
Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
7
CVSS 7.2/10 High
NETWORK / LOW complexity

Affected Products (1)

Affected Vendors

Mybb

References (8)

https://blog.sorcery.ie/posts/mybb_acp_rce/
Patch https://github.com/mybb/mybb/commit/a43a6f22944e769a6eabc58c39e7bc18c1cab4ca.pat...
Patch https://github.com/mybb/mybb/security/advisories/GHSA-pr74-wvp3-q6f5
Release Notes https://mybb.com/versions/1.8.36/
https://blog.sorcery.ie/posts/mybb_acp_rce/
Patch https://github.com/mybb/mybb/commit/a43a6f22944e769a6eabc58c39e7bc18c1cab4ca.pat...
Patch https://github.com/mybb/mybb/security/advisories/GHSA-pr74-wvp3-q6f5
Release Notes https://mybb.com/versions/1.8.36/
45
/ 100
moderate-risk
Severity 26/34 · High
Exploitability 14/34 · Moderate
Exposure 5/34 · Minimal