CVE-2026-46400— HAXCMS PHP has a File Upload Validation Bypass
Possible ATT&CK Techniques 1AI
T1505.003 · Web ShellAffected Version Matrix 1
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| haxtheweb | haxcms-php | >= 11.0.6, < 25.0.0 | affected |
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I. Basic Information for CVE-2026-46400
Vulnerability Information
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Vulnerability Title
HAXCMS PHP has a File Upload Validation Bypass
Source: NVD (National Vulnerability Database)
Vulnerability Description
HAX CMS helps manage microsite universe with PHP or NodeJs backends. Starting in version 11.0.6 and prior to version 25.0.0, the file upload functionality in HAXCMS PHP only validates file extensions using a regex pattern without checking the actual file content or MIME type. This allows attackers to upload malicious files (e.g., PHP webshells) disguised as legitimate image files, potentially leading to remote code execution. Version 25.0.0 contains a fix for the issue.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
危险类型文件的不加限制上传
Source: NVD (National Vulnerability Database)
Vulnerability Title
HAX CMS PHP 代码问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
HAXCMS是HAX The Web开源的一个内容管理系统。 HAX CMS PHP 11.0.6版本至25.0.0之前版本存在代码问题漏洞，该漏洞源于文件上传功能仅使用正则表达式验证文件扩展名而未检查实际文件内容或MIME类型，可能导致攻击者上传伪装成合法图像文件的恶意文件，实现远程代码执行。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| haxtheweb | haxcms-php | >= 11.0.6, < 25.0.0 | - |
II. Public POCs for CVE-2026-46400
| # | POC Description | Source Link | Shenlong Link |
|---|
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Vendor Advisories for CVE-2026-46400 (1)
Same Patch Batch · haxtheweb · 2026-06-05 · 16 CVEs total
| CVE-2026-46392 | 8.7 HIGH | HAX CMS PHP Has a Stored XSS via Case-Sensitivity Mismatch in HTML Upload Validation |
| CVE-2026-46493 | 7.5 HIGH | haxtheweb/haxcms-php uses insecure method for generating salt |
| CVE-2026-46357 | 6.5 MEDIUM | HAX CMS NodeJS application Vulnerable to Denial of Service using Malicious Import Request |
| CVE-2026-46397 | 6.5 MEDIUM | haxcms-php Local File Inclusion via saveOutline API Location Parameter v2.0 |
| CVE-2026-46396 | HAX CMS has a stored XSS via <iframe> that allows access to sensitive client-side data and | |
| CVE-2026-46401 | HAX CMS PHP has Insufficient Session Expiration | |
| CVE-2026-46390 | HAX CMS has Unauthenticated Git Access via User-Controlled Key | |
| CVE-2026-46394 | HAX CMS Vulnerable to Command Injection using Git.php | |
| CVE-2026-46496 | HAX CMS: Stored XSS via '<video-player>' component allows arbitrary JavaScript execution a | |
| CVE-2026-46398 | HAX CMS Missing Secure Flag on Cookie | |
| CVE-2026-46395 | HAX CMS Vulnerable to Private Key Disclosure via Broken HMAC Implementation | |
| CVE-2026-46511 | HAXcms: Mass Token Exfiltration and Cross-Tenant Hijack | |
| CVE-2026-46391 | HAX open-apis: Credential Theft via Server-Side Request Forgery (SSRF) in open-apis | |
| CVE-2026-46393 | HAXcms createSite SSRF Enables Arbitrary File Read | |
| CVE-2026-46399 | Authenticated Remote Code Execution via File Overwrite |
IV. Related Vulnerabilities
Same product: haxcms-php
- CVE-2026-46493
haxtheweb/haxcms-php uses insecure method for generating sal - CVE-2026-46398
HAX CMS Missing Secure Flag on Cookie - CVE-2026-46397
haxcms-php Local File Inclusion via saveOutline API Location - CVE-2026-46394
HAX CMS Vulnerable to Command Injection using Git.php - CVE-2026-46392
HAX CMS PHP Has a Stored XSS via Case-Sensitivity Mismatch i
Same vendor: haxtheweb
- CVE-2026-46357
HAX CMS NodeJS application Vulnerable to Denial of Service u - CVE-2026-46493
haxtheweb/haxcms-php uses insecure method for generating sal - CVE-2026-46401
HAX CMS PHP has Insufficient Session Expiration - CVE-2026-46398
HAX CMS Missing Secure Flag on Cookie - CVE-2026-46397
haxcms-php Local File Inclusion via saveOutline API Location
Same weakness: CWE-434
- CVE-2019-25758
Joomla! Component vBizz 1.0.7 Remote Code Execution - CVE-2026-9860
Offload, AI & Optimize with Cloudflare Images <= 1.10.2 - Au - CVE-2026-52705
WordPress SigmaForms Pro – AI Generated Forms plugin <= 1.4. - CVE-2026-40749
WordPress Charity Zone theme <= 1.1.1 - Arbitrary File Uploa - CVE-2026-40748
WordPress Kids Gift Shop theme <= 0.5.4 - Arbitrary File Upl
V. Comments for CVE-2026-46400
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