CVE-2026-104081— KodExplorer < 4.55 Path Traversal via unzip_pre_name() ZIP Extraction
Quick assessment
Affected
kalcaddle KodExplorer
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
KodExplorer 4.55 之前的版本在 app/function/helper.function.php 文件的 unzip_pre_name() 函数中存在路径穿越漏洞。该漏洞中，单次非递归的 str_replace() 净化逻辑可被构造的特殊文件名（如 “....//”）绕过；同时，KodArchive.class.php 中调用 PclZip 的 extract() 函数时未启用 PCLZIP_OPT_EXTRACT_DIR_RESTRICTION 选项，进一步加剧了安全风险。经过身份验证的攻击者可以
Possible ATT&CK Techniques 3 AI
T1059 · Command and Scripting Interpreter T1078 · Valid Accounts T1190 · Exploit Public-Facing ApplicationAffected Version Matrix 1
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| kalcaddle | KodExplorer | < 4.55 |
affected |
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I. Basic Information for CVE-2026-104081
Vulnerability Information
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Vulnerability Title
KodExplorer < 4.55 Path Traversal via unzip_pre_name() ZIP Extraction
Source: CVE Program / CVE List V5
Vulnerability Description
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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
对路径名的限制不恰当(路径遍历)
Source: CVE Program / CVE List V5
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| kalcaddle | KodExplorer | 0 ~ 4.55 | - |
|
II. Public POCs for CVE-2026-104081
| # | POC Description | Source Link | Shenlong Link |
|---|
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Vendor Advisories for CVE-2026-104081 (1)
Vendor Pages for CVE-2026-104081 (1)
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V. Comments for CVE-2026-104081
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