What is the CVSS score of CVE-2026-8626?

CVE-2026-8626 has a CVSS 3.1 base score of 6.1 (Medium). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N. EPSS exploitation probability: 0.1%.

SponsorMe WordPress Plugin CVE-2026-8626

EUVD-2026-31024 MEDIUM

Cross-site Scripting (XSS) (CWE-79)

2026-05-20 Wordfence

GHSA-rxxc-xr9w-xfp5

PHP WordPress XSS

6.1

CVSS 3.1

CVSS VectorNVD

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Changed

Confidentiality

Low

Integrity

Low

Availability

None

Lifecycle Timeline

Analysis Generated

May 20, 2026 - 02:41 vuln.today

DescriptionNVD

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.

AnalysisAI

Reflected Cross-Site Scripting in the SponsorMe plugin for WordPress (all versions through 0.5.2) allows unauthenticated attackers to execute arbitrary JavaScript in a victim's browser by tricking an authenticated user - likely a WordPress administrator - into clicking a specially crafted wp-admin/admin.php URL. The PHP_SELF superglobal is reflected unsanitized in two distinct locations within the same vulnerable function: a form action attribute (sponsorme.php:440) and an anchor href attribute (sponsorme.php:475), doubling the attack surface. …

Analysis

Detailed AI-generated intelligence summary covering attack vector, impact assessment, affected versions, remediation steps, and indicators of compromise.

POChttps://••••••••••.com/exploit

PATCHhttps://••••••••••.com/patch

ADVISORYhttps://••••••••••.com/advisory

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CVE-2026-8626 vulnerability details – vuln.today

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