CVE-2026-5524— Divi Engine Divi Form Builder 任意文件上传漏洞
一分钟漏洞结论
影响对象
Divi Engine Divi Form Builder
利用判断
存在公开或 AI PoC，应优先验证
建议动作
优先检查厂商安全公告和参考链接中的修复版本；无法立即升级时，限制受影响服务暴露并加强监测。
Divi Engine Divi Form Builder是Divi Engine的表单生成器。 Divi Engine Divi Form Builder 5.1.8及之前版本存在任意文件上传漏洞，该漏洞源于do_image_upload()函数中对用户输入的acceptFileTypes POST参数文件扩展名验证不足，且正则表达式未正确过滤，导致未经身份验证的攻击者上传可执行PHP文件，实现远程代码执行。
已观察到在野利用
github_trending · low
影响版本矩阵 1
| 厂商 | 产品 | 版本范围 | 状态 |
|---|---|---|---|
| Divi Engine | Divi Form Builder | ≤ 5.1.8 |
affected |
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一、 漏洞 CVE-2026-5524 基础信息
漏洞信息
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Vulnerability Title
Divi Form Builder <= 5.1.8 - Unauthenticated Arbitrary File Upload Leading to Remote Code Execution via 'acceptFileTypes' Parameter
来源: CVE Program / CVE List V5
Vulnerability Description
The Divi Form Builder plugin for WordPress is vulnerable to Arbitrary File Upload leading to Remote Code Execution in all versions up to and including 5.1.8. This is due to insufficient file extension validation in the do_image_upload() function where user-supplied input from the acceptFileTypes POST parameter is directly interpolated into a regular expression used to validate uploaded files. Attackers can specify PHP-executable extensions such as .phtml, .phar, .php5, or .php7 to bypass the plugin's .htaccess protection which only blocks .php files specifically. Additionally, on Nginx-based servers, the .htaccess protection is completely ineffective as Nginx does not process .htaccess files. This makes it possible for unauthenticated attackers (who can obtain a nonce from any public page containing a form) to upload executable PHP files to the publicly accessible /wp-content/uploads/de_fb_uploads/ directory and achieve Remote Code Execution by accessing the uploaded file via HTTP. The vulnerability was partially patched in version 5.1.3.
来源: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
来源: CVE Program / CVE List V5
Vulnerability Type
危险类型文件的不加限制上传
来源: CVE Program / CVE List V5
Vulnerability Title
Divi Engine Divi Form Builder 任意文件上传漏洞
来源: 中国国家信息安全漏洞库 CNNVD
Vulnerability Description
Divi Engine Divi Form Builder是Divi Engine的表单生成器。 Divi Engine Divi Form Builder 5.1.8及之前版本存在任意文件上传漏洞，该漏洞源于do_image_upload()函数中对用户输入的acceptFileTypes POST参数文件扩展名验证不足，且正则表达式未正确过滤，导致未经身份验证的攻击者上传可执行PHP文件，实现远程代码执行。
来源: 中国国家信息安全漏洞库 CNNVD
CVSS Information
N/A
来源: 中国国家信息安全漏洞库 CNNVD
Vulnerability Type
N/A
来源: 中国国家信息安全漏洞库 CNNVD
受影响产品
| 厂商 | 产品 | 影响版本 | CPE | 订阅 |
|---|---|---|---|---|
| Divi Engine | Divi Form Builder | 0 ~ 5.1.8 | - |
|
二、漏洞 CVE-2026-5524 的公开POC
| # | POC 描述 | 源链接 | 神龙链接 |
|---|
AI 生成 POC
高级
default-local-qwen3.6
· 10084 chars
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完整可执行 POC 代码
利用链与缓解建议
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每月 100+ 条 AI 生成额度
三、漏洞 CVE-2026-5524 的情报信息
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CVE-2026-5524 厂商安全公告 (1)
IV. Related Vulnerabilities
V. Comments for CVE-2026-5524
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