Everest Forms Public Temporary CSV Exposure Vulnerability
The Everest Forms WordPress plugin before 3.5.0 does not reliably delete temporary CSV files generated during email-notification processing and leaves them publicly accessible in the uploads directory, allowing unauthenticated attackers to retrieve other users' form submission records via predictable, enumerable filenames.
Quick answer
Everest Forms should be reviewed and updated if it matches the affected versions. The recommended fix is to apply the vendor-supported patched version or the mitigation steps below, then retest the public website with Fixnx.
Who is affected
Affected versions
- Everest Forms before 3.5.0
Fixed versions
- 3.5.0
How to fix it
Everest Forms before 3.5.0 could expose temporary CSV files in the WordPress uploads area. Update the plugin, remove leftover CSV exports, and prevent direct web access to temporary export files.
- Identify WordPress sites running Everest Forms before version 3.5.0.
- Update Everest Forms to 3.5.0 or later.
- Search wp-content/uploads and plugin export directories for temporary CSV files created by Everest Forms.
- Delete stale CSV exports and move required exports outside the public web root.
- Add server rules that deny direct access to temporary CSV, backup, and export files in uploads directories.
- Review access logs for downloads of Everest Forms CSV files before cleanup.
- Rotate or notify affected users if form submissions contained sensitive information that may have been downloaded.
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Verify the fix
- Confirm Everest Forms is version 3.5.0 or later.
- Verify temporary CSV exports are no longer accessible through public URLs.
- Check that old CSV files were removed from uploads and backup locations.
- Test legitimate export workflows and confirm files are protected after creation.
- Run a Fixnx scan and confirm sensitive export files are not publicly reachable.
Related categories
Trusted references
FAQ
What is affected by CVE-2026-11571?
Everest Forms versions listed as affected should be reviewed: Everest Forms before 3.5.0.
What should I fix first?
Start with internet-facing sites, admin panels, login flows, plugins, themes, modules, packages, and systems that process user-controlled input or sensitive data.
How do I confirm the fix worked?
Apply the patched version or mitigation, clear caches where relevant, retest the affected workflow, and run a new Fixnx scan to verify public website exposure signals.
Why can this risk appear in multiple categories?
A vulnerability can belong to more than one platform or ecosystem. Fixnx keeps one canonical risk page while also listing it in every relevant category.