Feed/CVE-2023-53979
CVE-2023-53979HIGHCVSS 8.8

CVE-2023-53979

Published Dec 22, 2025·Updated Jun 17, 2026

NVD 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.

CVSS Vector

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

References

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