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Tool Directory

CVE-2023-2877

HighPublished

Formidable Forms < 6.3.1 - Subscriber+ Remote Code Execution

Published: Jun 27, 2023
Updated: Dec 3, 2024
Assigning CNA: WPScan
Evidence observed: Aug 5, 2026

Primary CVSS

8.8/ 10High

nvd · CVSS 3.1

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

EPSS probability estimate

22.5%

Moderate · next 30 days

Percentile: 97.6%
Model date: Sep 21, 2026

EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.

Summary

The Formidable Forms WordPress plugin before 6.3.1 does not adequately authorize the user or validate the plugin URL in its functionality for installing add-ons. This allows a user with a role as low as Subscriber to install and activate arbitrary plugins of arbitrary versions from the WordPress.org plugin repository onto the site, leading to Remote Code Execution.

Sources

CVE-2023-2877Exploit
Formidable Forms < 6.3.1 - Subscriber+ Remote Code Execution

Responsible use

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