SigmaForms Pro <= 1.4.11 - Unauthenticated Arbitrary File Deletion via Path Traversal in File Upload Field (CVE-2026-78657) | HOL Guard CVE

Unknown severity · Source severity not reportedCVE-2026-78657

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

Answer in brief

CVE-2026-78657 records a Unknown severity vulnerability in SigmaForms Pro <= 1.4.11 - Unauthenticated Arbitrary File Deletion via Path Traversal in File Upload Field. The current sources do not mark it as known exploited. The current feed maps bdthemes/SigmaForms Pro – AI Generated Forms (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Sep 2, 2026Updated Sep 2, 2026Source checked Sep 2, 2026First seen by HOL Sep 2, 2026Material review Sep 2, 2026

Upstream Advisory

Key facts

Risk: Unknown severitySource severity not reported
Exploitation: Not marked as known exploited
Affected software: 1 mapped package or product
Fix availability: Not reported

Why this deserves its current priority

A CVSS score is not reported in the current record. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps bdthemes/SigmaForms Pro – AI Generated Forms (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
Package	Affected range	Fixed version
bdthemes/SigmaForms Pro – AI Generated Formsgeneric	0	Not reported

Recommended response

Check inventory. Check lockfiles and deployed manifests for bdthemes/SigmaForms Pro – AI Generated Forms.
Review the reported fix. Monitor this advisory for an available fix and review any installs of the affected package.

Evidence timeline and material changes

Published upstream
Sep 2, 2026
Evidence: source:cvelist:source_dates:source-dates:record
Source modified
Sep 2, 2026
Evidence: source:cvelist:source_dates:source-dates:record
First seen by HOL
Sep 2, 2026

Sources and claim methodology

Upstream source 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.

Quoted source text, attributed separately from HOL analysis.