MyBB vulnerability allows code injection by users with high privileges
CVE-2023-41362

7.2HIGH

Key Information:

Vendor

Mybb

Status
Mybb
Vendor
CVE Published:
29 August 2023

Badges

👾 Exploit Exists🟡 Public PoC🟣 EPSS 17%

What is CVE-2023-41362?

MyBB Forum Software versions prior to 1.8.36 are susceptible to a code injection vulnerability that can be exploited by users with elevated privileges. The issue arises from the use of the 'eval' function in templates within the Admin Control Panel, where insufficient validation of input allows for type juggling during PCRE operations. Malicious users can inject arbitrary PHP code, potentially compromising the security of the web application. It is essential for users to update to the latest version to mitigate this risk.

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2023-41362_MyBB_ACP_RCE
Created by SorceryIE

References

https://mybb.com/versions/1.8.36/
https://github.com/mybb/mybb/security/advisories/GHSA-pr7...
https://github.com/mybb/mybb/commit/a43a6f22944e769a6eabc...

EPSS Score

17% chance of being exploited in the next 30 days.

CVSS V3.1

Score:
7.2
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
High
User Interaction:
None
Scope:
Unchanged

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

.