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CVE-2026-8626

SponsorMe <= 0.5.2 - Reflected Cross-Site Scripting via PHP_SELF Parameter

Published: May 20, 2026Updated: May 20, 2026 Sources: CVE List NVD
NVD MITRE
6.1CVSS
MEDIUM

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.

EPSS Score
0.1%
Top 76.1%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
No Fix Available

CVSS Vector Breakdown

AV:NAC:LPR:NUI:RS:CC:LI:LA:N
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:RUser Interaction
Required
Scope
S:CScope
Changed
Impact
C:LConfidentiality
Low
I:LIntegrity
Low
A:NAvailability
None

Weaknesses

CWE-79

Affected Products

SponsorMe
owencutajar

Attack Graph

Products CVE Techniques Tactics

Click technique nodes to view MITRE ATT&CK details. Scroll to zoom, drag to pan.

Exploitability

No known exploits, KEV entries, or remediation guidance available for this vulnerability yet.

MITRE ATT&CK

2 techniques
Execution
Initial Access
View detailed technique mapping

References

https://www.wordfence.com/threat-intel/vulnerabilities/id/7df7f541-b8aa-46fa-bfca-b333beea27f9?source=cve
wordfence.com
https://plugins.trac.wordpress.org/browser/sponsorme/trunk/sponsorme.php#L440
plugins.trac.wordpress.org
https://plugins.trac.wordpress.org/browser/sponsorme/trunk/sponsorme.php#L475
plugins.trac.wordpress.org

Timeline

Published
May 20, 2026
Last Updated
May 20, 2026

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