CVE-2026-91833
Deferred Deferred - Pending Action

SQL Injection in WX Subscribe WordPress Plugin

Publication date: 2026-10-16

Last updated on: 2026-10-16

Assigner: WPScan

Description
The WX Subscribe 微信支付付费订阅 WordPress plugin through 1.2.1 does not sanitise and escape a parameter before using it in a SQL statement, allowing unauthenticated attackers to perform SQL injection attacks on installs where the payment key has not been configured.

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Meta Information

Published
2026-10-16
Last Modified
2026-10-16
Generated
2026-10-19
AI Q&A
2026-10-16
EPSS Evaluated
2026-10-18
NVD
CVE-2026-91833
EUVD
EUVD-2026-102683

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
Unknown WX Subscribe 微信支付付费订阅 0

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-89 The product constructs all or part of an SQL command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended SQL command when it is sent to a downstream component. Without sufficient removal or quoting of SQL syntax in user-controllable inputs, the generated SQL query can cause those inputs to be interpreted as SQL instead of ordinary user data.

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Executive Summary

The WX Subscribe WordPress plugin up to version 1.2.1 has a flaw where it does not properly sanitize and escape a parameter called 'attach' before using it in a SQL query. This allows unauthenticated attackers to inject malicious SQL commands, potentially accessing or manipulating the database.

Detection Guidance

Check if the WX Subscribe plugin version 1.2.1 or earlier is installed on your WordPress site. Look for unauthenticated SQL injection attempts targeting the 'attach' parameter in SQL queries.

Impact Analysis

If your WordPress site uses this plugin without a configured payment key, attackers could exploit this to execute arbitrary SQL commands. This may lead to unauthorized data access, data deletion, or other malicious database operations.

Compliance Impact

This vulnerability could lead to unauthorized access or exposure of sensitive data, which may violate compliance requirements under GDPR or HIPAA. Organizations could face penalties if such breaches occur due to unpatched vulnerabilities.

Mitigation Strategies

Immediately update the WX Subscribe plugin to the latest version if available. If no update exists, consider disabling or removing the plugin until a patch is released. Monitor network traffic for suspicious SQL queries targeting the 'attach' parameter.

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