CVE-2026-8626
SponsorMe <= 0.5.2 - Reflected Cross-Site Scripting via PHP_SELF Parameter
Description
The SponsorMe plugin for WordPress is vulnerable to Reflected Cross-Site Scripting via PHP_SELF Parameter in all versions up to, and including, 0.5.2 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that execute if they can successfully trick a user into performing an action such as clicking on a link. The PHP_SELF value is reflected in two separate locations within the vulnerable function — a form action attribute and an anchor href attribute — both of which can be exploited by appending a crafted payload to the wp-admin/admin.php URL path.
INFO
Published Date :
May 20, 2026, 2:16 a.m.
Last Modified :
July 23, 2026, 8:10 p.m.
Remotely Exploit :
Yes !
Source :
[email protected]
Affected Products
The following products are affected by CVE-2026-8626
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
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS | 134c704f-9b21-4f2e-91b3-4a467353bcc0 | |||||
| CVSS 3.1 | MEDIUM | [email protected] |
Solution
- Update SponsorMe plugin to the latest version.
- Sanitize all user inputs.
- Escape all output from user inputs.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-8626.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-8626 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-2026-8626
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-2026-8626 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-8626 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.
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CVE Translated by [email protected]
Jul. 23, 2026
Action Type Old Value New Value Added Translation Title: plugin de WordPress SponsorMe, Description: El plugin SponsorMe para WordPress es vulnerable a cross-site scripting reflejado a través del parámetro PHP_SELF en todas las versiones hasta la 0.5.2, inclusive, debido a una sanitización de entrada y un escape de salida insuficientes. Esto hace posible que atacantes no autenticados inyecten scripts web arbitrarios en páginas que se ejecutan si logran engañar a un usuario para que realice una acción como hacer clic en un enlace. El valor de PHP_SELF se refleja en dos ubicaciones separadas dentro de la función vulnerable - un atributo action de formulario y un atributo href de ancla - ambos pueden ser explotados al añadir una carga útil diseñada a la ruta URL wp-admin/admin.php. -
CVE Modified by [email protected]
Jun. 17, 2026
Action Type Old Value New Value Added Affected [{'vendor': 'owencutajar', 'product': 'SponsorMe', 'versions': [{'status': 'affected', 'version': '0', 'versionType': 'semver', 'lessThanOrEqual': '0.5.2'}], 'defaultStatus': 'unaffected'}] -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Jun. 17, 2026
Action Type Old Value New Value Added SSVC {'id': 'CVE-2026-8626', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'none'}, {'automatable': 'no'}, {'technicalImpact': 'partial'}], 'version': '2.0.3', 'timestamp': '2026-05-20T14:13:19.907544Z'} -
New CVE Received by [email protected]
May. 20, 2026
Action Type Old Value New Value Added Description The SponsorMe plugin for WordPress is vulnerable to Reflected Cross-Site Scripting via PHP_SELF Parameter in all versions up to, and including, 0.5.2 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that execute if they can successfully trick a user into performing an action such as clicking on a link. The PHP_SELF value is reflected in two separate locations within the vulnerable function — a form action attribute and an anchor href attribute — both of which can be exploited by appending a crafted payload to the wp-admin/admin.php URL path. Added CVSS V3.1 AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N Added CWE CWE-79 Added Reference https://plugins.trac.wordpress.org/browser/sponsorme/trunk/sponsorme.php#L440 Added Reference https://plugins.trac.wordpress.org/browser/sponsorme/trunk/sponsorme.php#L475 Added Reference https://www.wordfence.com/threat-intel/vulnerabilities/id/7df7f541-b8aa-46fa-bfca-b333beea27f9?source=cve