Security Vulnerability Report
中文
CVE-2026-4072 CVSS 6.4 MEDIUM

CVE-2026-4072

Published: 2026-03-21 04:17:40
Last Modified: 2026-04-24 16:27:44

Description

The WordPress PayPal Donation plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'donate' shortcode in all versions up to, and including, 1.01. This is due to insufficient input sanitization and output escaping on user-supplied shortcode attributes such as 'amount', 'email', 'title', 'return_url', 'cancel_url', 'ccode', and 'image'. The wordpress_paypal_donation_create() function uses extract(shortcode_atts(...)) to process shortcode attributes and then directly interpolates these values into HTML output within single-quoted attribute values without any escaping. This makes it possible for authenticated attackers, with Contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

CVSS Details

CVSS Score
6.4
Severity
MEDIUM
CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N

Configurations (Affected Products)

No configuration data available.

WordPress PayPal Donation Plugin <= 1.01

PoC / Exploit Code

⚠ For Security Research Only
The following code is for security research and authorized testing only.
python
[donate amount='1' email='[email protected]' title='Donation' image='hax' onmouseover='alert(1)']

References

Raw JSON Data

JSON
{"cve": {"id": "CVE-2026-4072", "sourceIdentifier": "[email protected]", "published": "2026-03-21T04:17:40.413", "lastModified": "2026-04-24T16:27:44.277", "vulnStatus": "Deferred", "cveTags": [], "descriptions": [{"lang": "en", "value": "The WordPress PayPal Donation plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'donate' shortcode in all versions up to, and including, 1.01. This is due to insufficient input sanitization and output escaping on user-supplied shortcode attributes such as 'amount', 'email', 'title', 'return_url', 'cancel_url', 'ccode', and 'image'. The wordpress_paypal_donation_create() function uses extract(shortcode_atts(...)) to process shortcode attributes and then directly interpolates these values into HTML output within single-quoted attribute values without any escaping. This makes it possible for authenticated attackers, with Contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page."}, {"lang": "es", "value": "El plugin WordPress PayPal Donation para WordPress es vulnerable a cross-site scripting almacenado a través del shortcode 'donate' en todas las versiones hasta la 1.01, inclusive. Esto se debe a una sanitización de entrada y un escape de salida insuficientes en los atributos de shortcode proporcionados por el usuario, como 'amount', 'email', 'title', 'return_url', 'cancel_url', 'ccode' e 'image'. La función wordpress_paypal_donation_create() utiliza extract(shortcode_atts(...)) para procesar los atributos del shortcode y luego interpola directamente estos valores en la salida HTML dentro de valores de atributos entre comillas simples sin ningún escape. Esto hace posible que atacantes autenticados, con acceso de nivel Colaborador y superior, inyecten scripts web arbitrarios en páginas que se ejecutarán cada vez que un usuario acceda a una página inyectada."}], "metrics": {"cvssMetricV31": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N", "baseScore": 6.4, "baseSeverity": "MEDIUM", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "NONE", "scope": "CHANGED", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "availabilityImpact": "NONE"}, "exploitabilityScore": 3.1, "impactScore": 2.7}]}, "weaknesses": [{"source": "[email protected]", "type": "Secondary", "description": [{"lang": "en", "value": "CWE-79"}]}], "references": [{"url": "https://plugins.trac.wordpress.org/browser/wordpress-paypal-donation/tags/1.01/wp-paypal-donation.php#L260", "source": "[email protected]"}, {"url": "https://plugins.trac.wordpress.org/browser/wordpress-paypal-donation/tags/1.01/wp-paypal-donation.php#L271", "source": "[email protected]"}, {"url": "https://plugins.trac.wordpress.org/browser/wordpress-paypal-donation/trunk/wp-paypal-donation.php#L260", "source": "[email protected]"}, {"url": "https://plugins.trac.wordpress.org/browser/wordpress-paypal-donation/trunk/wp-paypal-donation.php#L271", "source": "[email protected]"}, {"url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/99a8b48b-2967-4179-a0eb-626bbe273f03?source=cve", "source": "[email protected]"}]}}