Live Exposure Defense: From CVE to Confirmed Exposure in 12 Hours – See more

Back
New CVE Detected

CVE-2026-78657 – Unauthenticated Arbitrary File Deletion (leading to RCE) – SigmaForms Pro – AI Gene

Be the first to know when new zero-days emerge:

Subscribe to Email Alerts
Subscribe to RSS Feed

Summary

CVE-2026-78657 is a critical path traversal vulnerability (CWE-22) in the SigmaForms Pro – AI Generated Forms WordPress plugin by bdthemes, affecting all versions up to and including 1.4.11. The flaw allows unauthenticated attackers to cause arbitrary file deletion on the server, which can lead to remote code execution when a critical file such as wp-config.php is removed. The vulnerability carries a CVSS v3.1 base score of 9.8 (Critical).

Technical details

  • Root cause: insufficient file path validation in the plugin’s delete_submission_files function.
  • Trigger conditions: an attacker submits a malicious path-traversal string via a form’s file upload field; this value is stored unvalidated in the WordPress database as part of the submission record.
  • Attack vector: network, no authentication or user interaction from the attacker required at submission time; the destructive action fires later when a site administrator deletes the stored submission from the WordPress admin panel, triggering deletion of the attacker-supplied path instead of (or in addition to) the intended upload.
  • Impact: arbitrary file deletion on the web server; deleting configuration files such as wp-config.php can force the site into a reinstallation state that can be leveraged for remote code execution, resulting in full compromise of confidentiality, integrity, and availability.

Affected software

  • bdthemes SigmaForms Pro – AI Generated Forms (WordPress plugin): all versions up to and including 1.4.11

Severity

  • CVSS v3.1 Base Score: 9.8 (Critical)
  • Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Mitigation and recommended actions

  • Immediate: Update SigmaForms Pro to a version released after 1.4.11 that addresses this issue as soon as the vendor publishes a fixed release; check the plugin changelog for confirmation before assuming a version is patched.
  • If no patch is yet available: disable or remove the SigmaForms Pro plugin, or disable file upload fields on public-facing forms; audit and clean existing form submissions in the database for suspicious/traversal-style file paths before deleting them from the admin panel; restrict admin panel access and monitor for unexpected file deletions on the server.

How IONIX identifies potentially affected assets

IONIX matches the following signal against data already collected when it crawled the asset; identifying the technology sends no request beyond that crawl.

  • Raw response body: /wp-content/plugins/sigmaforms-pro/

References

Are you exposed?

Get a free report of your organization’s exposure to this CVE and threat

  • Mapping of all Assets with this Technology
  • Identification of potentially exposed assets to this CVE
  • Confirmation of verified exploitable assets
Get Exposure Report

How IONIX’s External Exposure Management Platform Detects and Validates
Zero-Days to Shrink MTTR

1

Map your entire attack surface (continously)

IONIX uses multi-factor discovery methods, including DNS analysis, certificate mapping, metadata inspection, and more, to automatically map every internet-facing asset across your environment. This includes cloud instances, third-party platforms, shadow IT, and even forgotten infrastructure that traditional tools miss.

2

Monitor for new CVEs

Dozens of threat intel feeds using agentic technology are continuously analyzed to detect the appearance of proof-of-concept code, exploit kits, and indicators of active targeting. IONIX goes further by applying AI to proactively evaluate whether emerging vulnerabilities are likely to be exploited, even before PoCs go public.

3

Identify Potential External Exposures

Not all CVEs matter. IONIX filters vulnerabilities by asking attacker-centric questions: Can it be reached from the internet? Does it require authentication? Is it being exploited in the wild? This dramatically reduces noise and focuses teams on threats that can actually be weaponized.

4

Create Safe, Scalable Exploit Validations

IONIX transforms real-world PoCs into safe, non-intrusive test payloads that can be run in production environments without disruption. These simulations are precisely targeted to the systems that are vulnerable, ensuring rapid validation without unnecessary load.

5

Execute Exploit Validations

By combining context about software stack, versioning, exposure status, and reachability, IONIX ensures that only the right payloads are executed against the right assets, maximizing efficiency and minimizing risk.

6

Drive Fast and Actionable Remediation

Results are routed through integrations with ticketing, SOAR, and SIEM tools. Issues are written in plain language, bundled into remediation clusters, and prioritized based on asset criticality, exploitability, and blast radius. This shortens mean time to remediation (MTTR) and empowers teams to act with confidence.

Are you exposed?

Get a free report of your organization’s exposure to this CVE and threat

  • Mapping of all Assets with this Technology
  • Identification of potentially exposed assets to this CVE
  • Confirmation of verified exploitable assets
Get Exposure Report
Close

Subscribe to Threat Center RSS

Copy/paste the link below into your preferred RSS reader or follow these instructions to subscribe to Slack alerts.

Open RSS feedSlack setup instructions

Close

Get Real-Time CVE Alerts to Your Email

Be the first to know when new zero-days emerge