CVE-2023-53979

HighCVSS 8.8/10Last modified Jun 17, 2026

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.

Metrics

CVSS 3.1 8.8/10CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-22

Affected software

No affected versions have been published.

Timeline

Published: Dec 22, 2025
Last modified: Jun 17, 2026
NVD status: Modified

Related CVEs from 2023

CVE-2023-53985.9Server receiving a malformed message based on a list of IPs resulting in heap corruption causing a denial of service. See Honeywell Security CVE-2023-539809.8ProjectSend r1605 contains a remote code execution vulnerability that allows attackers to upload malicious files by manipulating file extens CVE-2023-539817.2PhotoShow 3.0 contains a remote code execution vulnerability that allows authenticated administrators to inject malicious commands through t CVE-2023-539827.5PMB 7.4.6 contains a SQL injection vulnerability in the storage parameter of the ajax.php endpoint that allows remote attackers to manipulat CVE-2023-539839.8Anevia Flamingo XL/XS 3.6.20 contains a critical vulnerability with weak default administrative credentials that can be easily guessed. Atta CVE-2023-539848.4Clevo HotKey Clipboard 2.1.0.6 contains an unquoted service path vulnerability in the HKClipSvc service that allows local non-privileged use CVE-2023-539856.1Zstore, now referred to as Zippy CRM, 6.5.4 contains a reflected cross-site scripting vulnerability that allows attackers to inject maliciou CVE-2023-539868.6In the Linux kernel, the following vulnerability has been resolved: mips: bmips: BCM6358: disable RAC flush for TP1 RAC flush causes kerne CVE-2023-53987In the Linux kernel, the following vulnerability has been resolved: ping: Fix potentail NULL deref for /proc/net/icmp. After commit dbca15 CVE-2023-539887.8In the Linux kernel, the following vulnerability has been resolved: fs/ntfs3: Fix slab-out-of-bounds read in hdr_delete_de() Here is a BUG CVE-2023-53989In the Linux kernel, the following vulnerability has been resolved: arm64: mm: fix VA-range sanity check Both create_mapping_noalloc() and CVE-2023-53999.8A CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') vulnerability exists that could cause tampering of