4.3
MEDIUM CVSS 3.1
CVE-2026-4071
BirdSeed <= 2.2.0 - Cross-Site Request Forgery via BirdSeed Token Change
Description

The BirdSeed plugin for WordPress is vulnerable to Cross-Site Request Forgery in all versions up to, and including, 2.2.0. This is due to missing nonce validation in the birdseed_plugin_settings_page() function. The function processes the 'birdseed_token' GET parameter and saves it to the database via update_option() without verifying a nonce. This makes it possible for unauthenticated attackers to change the plugin's BirdSeed token setting via a forged request, granted they can trick a site administrator into performing an action such as clicking a link.

INFO

Published Date :

June 2, 2026, 9:16 a.m.

Last Modified :

July 22, 2026, 7:10 p.m.

Remotely Exploit :

Yes !
Affected Products

The following products are affected by CVE-2026-4071 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

No affected product recoded yet

CVSS Scores
The Common Vulnerability Scoring System is a standardized framework for assessing the severity of vulnerabilities in software and systems. We collect and displays CVSS scores from various sources for each CVE.
Score Version Severity Vector Exploitability Score Impact Score Source
CVSS 134c704f-9b21-4f2e-91b3-4a467353bcc0
CVSS 3.1 MEDIUM [email protected]
Solution
Update the BirdSeed plugin to the latest version to fix Cross-Site Request Forgery.
  • Update the BirdSeed plugin to the latest version.
  • Ensure nonce validation is implemented in custom code.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2026-4071 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2026-4071 weaknesses.

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2026-4071 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2026-4071 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Translated by [email protected]

    Jul. 22, 2026

    Action Type Old Value New Value
    Added Translation Title: plugin de WordPress BirdSeed, Description: El plugin BirdSeed para WordPress es vulnerable a la falsificación de petición en sitios cruzados en todas las versiones hasta la 2.2.0, inclusive. Esto se debe a la falta de validación de nonce en la función birdseed_plugin_settings_page(). La función procesa el parámetro GET 'birdseed_token' y lo guarda en la base de datos a través de update_option() sin verificar un nonce. Esto hace posible que atacantes no autenticados cambien la configuración del token BirdSeed del plugin a través de una petición falsificada, siempre que puedan engañar a un administrador del sitio para que realice una acción como hacer clic en un enlace.
  • CVE Modified by [email protected]

    Jun. 17, 2026

    Action Type Old Value New Value
    Added Affected [{'vendor': 'birdseedapp', 'product': 'BirdSeed', 'versions': [{'status': 'affected', 'version': '0', 'versionType': 'semver', 'lessThanOrEqual': '2.2.0'}], 'defaultStatus': 'unaffected'}]
  • CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0

    Jun. 17, 2026

    Action Type Old Value New Value
    Added SSVC {'id': 'CVE-2026-4071', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'none'}, {'automatable': 'no'}, {'technicalImpact': 'partial'}], 'version': '2.0.3', 'timestamp': '2026-06-02T10:38:08.448972Z'}
  • New CVE Received by [email protected]

    Jun. 02, 2026

    Action Type Old Value New Value
    Added Description The BirdSeed plugin for WordPress is vulnerable to Cross-Site Request Forgery in all versions up to, and including, 2.2.0. This is due to missing nonce validation in the birdseed_plugin_settings_page() function. The function processes the 'birdseed_token' GET parameter and saves it to the database via update_option() without verifying a nonce. This makes it possible for unauthenticated attackers to change the plugin's BirdSeed token setting via a forged request, granted they can trick a site administrator into performing an action such as clicking a link.
    Added CVSS V3.1 AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N
    Added CWE CWE-352
    Added Reference https://plugins.trac.wordpress.org/browser/birdseed/tags/2.2.0/birdseed.php#L42
    Added Reference https://plugins.trac.wordpress.org/browser/birdseed/tags/2.2.0/birdseed.php#L43
    Added Reference https://plugins.trac.wordpress.org/browser/birdseed/trunk/birdseed.php#L42
    Added Reference https://plugins.trac.wordpress.org/browser/birdseed/trunk/birdseed.php#L43
    Added Reference https://www.wordfence.com/threat-intel/vulnerabilities/id/236f5a78-435a-48d1-9dd7-c42a2155cb88?source=cve
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.