CVE-2026-104081

HIGH 8.1

KodExplorer < 4.55 Path Traversal via unzip_pre_name() ZIP Extraction

CVSS Score

8.1

EPSS Score

0.0%

EPSS Percentile

0th

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. Authenticated attackers can upload a malicious ZIP archive with traversal sequences to overwrite arbitrary files such as core JavaScript assets, enabling stored XSS that leads to admin account takeover and subsequent remote code execution via unrestricted PHP file upload.

CWE	CWE-22
Vendor	kalcaddle
Product	kodexplorer
Published	Oct 9, 2026

Stay Ahead of the Next One

Get instant alerts for kalcaddle kodexplorer

Be the first to know when new high vulnerabilities affecting kalcaddle kodexplorer are published — delivered to Slack, Telegram or Discord.

Get Free Alerts → Free · No credit card · 60 sec setup

CVSS v3 Breakdown

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

High

Availability

High

Affected Versions

kalcaddle / KodExplorer

0 < 4.55

References

NVD ↗ CVE.org ↗ EPSS Data ↗

github.com: https://github.com/kalcaddle/KodExplorer/releases/tag/4.55 vulncheck.com: https://www.vulncheck.com/advisories/kodexplorer-path-traversal-via-unzip-pre-name-zip-extraction

Credits

Muhammad Ali Sotvoldiyev