CVE-2026-3141: Auth Bypass (CVSS 9.1)

Description

The FormGent plugin for WordPress is vulnerable to unauthorized arbitrary file deletion due to a missing capability check on the /wp-json/formgent/responses/attachments REST API endpoint in all versions up to, and including, 1.9.2 This is due to the REST API route being registered without any authentication middleware in routes/rest/api.php. This makes it possible for unauthenticated attackers to delete arbitrary files within the formgent uploads directory. Additionally, on Linux servers where the wp-content/uploads/formgent directory does not yet exist (the default state after plugin installation), the path traversal protection can be bypassed, enabling deletion of arbitrary files including wp-config.php which can lead to complete site takeover via a fresh WordPress installation.

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CVSS v3.1 Score

9.1

CRITICAL

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H

EPSS — Exploit Prediction

0.0057

Probability of exploitation

0.45%

Percentile rank

EPSS estimates the probability that this vulnerability will be exploited in the wild within the next 30 days. A higher score means more likely to be exploited.

Weakness Type (CWE)

CWE-862 Missing Authorization

References

Other References

https://plugins.trac.wordpress.org/browser/formgent/tags/1.3.1/app/Http/Controllers/AttachmentController.php#L59 https://plugins.trac.wordpress.org/browser/formgent/tags/1.3.1/routes/rest/api.php#L27 https://plugins.trac.wordpress.org/browser/formgent/trunk/app/Http/Controllers/AttachmentController.php#L59 https://plugins.trac.wordpress.org/browser/formgent/trunk/routes/rest/api.php#L27 https://plugins.trac.wordpress.org/changeset/3604540/formgent/trunk/app/Http/Controllers/AttachmentController.php https://plugins.trac.wordpress.org/changeset?old_path=%2Fformgent/tags/1.9.2&new_path=%2Fformgent/tags/1.10.0 https://www.wordfence.com/threat-intel/vulnerabilities/id/097a9d0f-fa38-4fdc-9048-43dd65e7652c?source=cve

Frequently Asked Questions

What is CVE-2026-3141? +

The FormGent plugin for WordPress is vulnerable to unauthorized arbitrary file deletion due to a missing capability check on the /wp-json/formgent/responses/attachments REST API endpoint in all versions up to, and including, 1.9.2 This is due to the REST API route being registered without any authentication middleware in routes/rest/api.php. This makes it possible for unauthenticated attackers to delete arbitrary files within the formgent uploads directory. Additionally, on Linux servers where the wp-content/uploads/formgent directory does not yet exist (the default state after plugin installation), the path traversal protection can be bypassed, enabling deletion of arbitrary files including wp-config.php which can lead to complete site takeover via a fresh WordPress installation. It has a CVSS v3.1 base score of 9.1 (CRITICAL).

How severe is CVE-2026-3141? +

CVE-2026-3141 has a CVSS v3.1 score of 9.1 out of 10, rated CRITICAL. This is a critical vulnerability that should be patched immediately. The EPSS score is 0.0057, placing it in the 0th percentile for exploitation probability.

How do I check if I'm vulnerable to CVE-2026-3141? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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