CVEvulnerability
CVE-2023-53979
8.6 HIGH
Official page ↗
- Status
- Modified
- Published
- 2025-12-22
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 4.0 ([email protected])
- 8.6 HIGH — CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
- CVSS 3.1 ([email protected])
- 8.8 HIGH — CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- Weaknesses
- CWE-22
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.
Affected configurations
• mybb mybb 1.8.32
Related
Weakness · CWE (1)
- CWE-22 Improper Limitation of a Pathname to a Restricted Directory weakness
References
- https://fdlucifer.github.io/2023/01/17/mybb1-8-32-LFI-RCE/ Exploit, Third Party Advisory
- https://mybb.com/ Product
- https://www.exploit-db.com/exploits/51213 Exploit
- https://www.vulncheck.com/advisories/mybb-authenticated-remote-code-execution-via-chained-vulnerabilities Exploit, Third Party Advisory
- https://www.cve.org/CVERecord?id=CVE-2022-45867 www.cve.org