Description

MyBB 1.8.32 contains a chained vulnerability that allows authenticated administrators to bypass avatar upload restrictions and execute arbitrary code. Attackers can modify upload path settings, upload a malicious PHP-embedded image file, and execute commands through the language configuration editing interface.

Related CPE's

Could not find any relations

References

https://fdlucifer.github.io/2023/01/17/mybb1-8-32-LFI-RCE/

https://mybb.com/

https://www.exploit-db.com/exploits/51213

https://www.vulncheck.com/advisories/mybb-authenticated-remote-code-execution-via-chained-vulnerabilities

Weaknesses

[email protected]

Primary
CWE-22

CVSS impact metrics

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

8.8 · High

  • CVSS V3.1

  • CVSS V3.0

  • CVSS V2.0

Information

Source identifier

[email protected]

Vulnerability status

Received

Published

2025-12-22T22:16:03.540

9 hours ago

Last modified

2025-12-22T22:16:03.540

9 hours ago