CVE-2026-6572
MediumCVSS 5.6Exploitation Probability (EPSS)
Low risk25th percentile - higher than 25% of all known CVEs
Summary
A vulnerability was detected in Collabora KodExplorer up to 4.52 in /app/controller/share.class.php (fileUpload endpoint) due to improper authorization when manipulating the fileUpload argument. Remote exploitation is possible but requires high complexity. The exploit has been publicly disclosed and the vendor did not respond.
Risk Assessment
Improper authorization may allow unauthorized file uploads or modifications, risking data leakage or malicious code execution. The public exploit raises the likelihood of abuse.
Recommendation
Update KodExplorer beyond 4.52 or add additional authorization checks on the fileUpload endpoint. Restrict admin panel access and monitor unusual file operations.
Other vulnerabilities in KodExplorer
See all- CVE-2026-104081High
KodExplorer before 4.55 contains a path traversal vulnerability in the unzip_pre_name() function within app/function/helper.function.php, where a single non-recursive str_replace() sanitization pass can be bypassed using crafted filenames like "....//". Combined with PclZip's extract() call in KodArchive.class.php lacking the PCLZIP_OPT_EXTRACT_DIR_RESTRICTION option, an authenticated attacker can upload a malicious ZIP archive to overwrite arbitrary files, leading to admin account takeover and remote code execution.
- CVE-2026-6571Medium
A weakness has been identified in kodcloud KodExplorer up to 4.52. Affected by this vulnerability is the function roleGroupAction of the file /app/controller/systemRole.class.php. Executing a manipulation of the argument group_role can lead to authorization bypass. The attack may be launched remotely. The exploit has been made available to the public and could be used for attacks.
- CVE-2026-6570Low
A security flaw was discovered in kodcloud KodExplorer up to 4.52. The initInstall function in /app/controller/systemMember.class.php, when manipulating the path argument, leads to authorization bypass. The attack may be initiated remotely and the exploit has been publicly released.
- CVE-2025-34504Medium
KodExplorer 4.52 contains an open redirect vulnerability in the user login page that allows attackers to manipulate the 'link' parameter. Attackers can craft malicious URLs to redirect users to arbitrary external websites after authentication.
- CVE-2023-37153Medium
KodExplorer version 4.51 contains a Cross-Site Scripting (XSS) vulnerability in the Description box of the Light App creation feature. An attacker can exploit this vulnerability by injecting XSS syntax into the Description field.
Original NVD description (English source)
A security vulnerability has been detected in Collabora KodExplorer up to 4.52. Affected by this issue is some unknown functionality of the file /app/controller/share.class.php of the component fileUpload Endpoint. The manipulation of the argument fileUpload leads to improper authorization. Remote exploitation of the attack is possible. The attack's complexity is rated as high. The exploitation is known to be difficult. The exploit has been disclosed publicly and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS