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CVE-2026-78657— SigmaForms Pro <= 1.4.11 - Unauthenticated Arbitrary File Deletion via Path Traversal in File Upload Field

Quick assessment

Affected
bdthemes SigmaForms Pro – AI Generated Forms
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.

WordPress 插件 SigmaForms Pro – AI Generated Forms 存在任意文件删除漏洞。该漏洞源于 函数中文件路径验证不足，影响所有版本，包括 1.4.11 及之前的所有版本。 未认证的攻击者可以利用此漏洞删除服务器上的任意文件。如果删除了关键文件（如 ），则可能导致远程代码执行（RCE）。 攻击流程如下：恶意构造的路径遍历 URL 通过表单上传字段提交并存储在数据库中；当管理员在管理面板中删除对应的提交记录时，即触发文件删除操作。

CVSS 9.8 · Critical
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I. Basic Information for CVE-2026-78657

Vulnerability Information
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Vulnerability Title
SigmaForms Pro <= 1.4.11 - Unauthenticated Arbitrary File Deletion via Path Traversal in File Upload Field
Source: CVE Program / CVE List V5
Vulnerability Description
The SigmaForms Pro – AI Generated Forms plugin for WordPress is vulnerable to arbitrary file deletion due to insufficient file path validation in the delete_submission_files function in all versions up to, and including, 1.4.11. This makes it possible for unauthenticated attackers to delete arbitrary files on the server, which can easily lead to remote code execution when the right file is deleted (such as wp-config.php). The malicious path traversal URL is submitted via form upload field and stored in the database, with deletion triggered when an administrator deletes the submission record from the admin panel.
Source: 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
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
bdthemes SigmaForms Pro – AI Generated Forms 0 ~ 1.4.11 -

II. Public POCs for CVE-2026-78657

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III. Intelligence Information for CVE-2026-78657

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Vendor Pages for CVE-2026-78657 (1)

Other References for CVE-2026-78657 (1)

IV. Related Vulnerabilities

Same product: SigmaForms Pro – AI Generated Forms
Same vendor: bdthemes
Same weakness: CWE-22

V. Comments for CVE-2026-78657

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