Authentication Bypass in Simple Payment Plugin for WordPress
CVE-2025-6688

9.8CRITICAL

Key Information:

Vendor

WordPress
Status
Simple Payment
Vendor
CVE Published:
27 June 2025

What is CVE-2025-6688?

The Simple Payment plugin for WordPress contains a critical vulnerability allowing unauthenticated attackers to log in as administrative users. This issue arises from the inadequate verification of user identities during the login process utilizing the create_user() function. Versions 1.3.6 to 2.3.8 are particularly affected, which exposes sites to significant security risks if left unaddressed. Admins should update to the latest version immediately to remediate this vulnerability and protect sensitive site functions.

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Deploy the Patch

Affected Version(s)

Simple Payment 1.3.6 <= 2.3.8

References

https://www.wordfence.com/threat-intel/vulnerabilities/id...
https://plugins.trac.wordpress.org/changeset/3318371/simp...

CVSS V3.1

Score:
9.8
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Kenneth Dunn
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