CVE-2026-9720

Received Received - Intake

Cross-Site Request Forgery in Facturación Electrónica Costa Rica WordPress Plugin

Publication date: 2026-07-29

Last updated on: 2026-07-29

Assigner: Wordfence

Description

The Facturación Electrónica Costa Rica plugin for WordPress is vulnerable to Cross-Site Request Forgery in all versions up to, and including, 2.0.2. This is due to missing or incorrect nonce validation on the (global scope, included by fvcr_admin_page_html) function. This makes it possible for unauthenticated attackers to modify the plugin's configuration, including API tokens, access tokens, economic activity, Hacienda environment mode, invoice and ticket emission flags, exchange rate, and branch settings via a forged request granted they can trick a site administrator into performing an action such as clicking on a link.

CVSS Scores

EPSS Scores

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Meta Information

Published

2026-07-29

Last Modified

2026-07-29

Generated

2026-08-18

AI Q&A

2026-07-30

EPSS Evaluated

2026-08-17

NVD

CVE-2026-9720

EUVD

EUVD-2026-50199

Affected Vendors & Products

Vendor	Product	Version / Range
facturacion_electronica_costa_rica	plugin	to 2.0.2 (inc)

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-352	The web application does not, or cannot, sufficiently verify whether a request was intentionally provided by the user who sent the request, which could have originated from an unauthorized actor.

Attack-Flow Graph

Executive Summary

This vulnerability is a Cross-Site Request Forgery (CSRF) issue in the Facturación Electrónica Costa Rica WordPress plugin up to version 2.0.2. It occurs because the plugin lacks proper nonce validation on a function included in its admin page. This allows unauthenticated attackers to trick administrators into submitting forged requests that modify the plugin's settings.

Detection Guidance

This vulnerability can be detected by reviewing WordPress plugin logs for unauthorized configuration changes or suspicious admin actions. Check for unexpected modifications to the plugin's settings, such as API tokens or invoice emission flags. No specific commands are provided in the context.

Impact Analysis

An attacker could exploit this to change critical plugin settings like API tokens, access tokens, economic activity, invoice emission flags, and branch settings. This could disrupt billing, tax reporting, or other financial operations if the plugin is used for electronic invoicing in Costa Rica.

Compliance Impact

This vulnerability allows unauthenticated attackers to modify plugin settings via CSRF, potentially exposing sensitive data like API tokens. This could lead to unauthorized access or data breaches, which may violate compliance requirements under GDPR or HIPAA if personal or health data is involved.

Mitigation Strategies

Immediately update the Facturación Electrónica Costa Rica plugin to the latest version beyond 2.0.2. Enable WordPress nonces for all admin actions and review plugin settings for unauthorized changes. Consider disabling the plugin if not actively used.

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