CVE-2026-4834
SQL Injection in WP ERP Pro WordPress Plugin
Publication date: 2026-05-22
Last updated on: 2026-05-22
Assigner: Wordfence
Description
Description
CVSS Scores
EPSS Scores
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Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| wp_erp | wp_erp_pro | to 1.5.1 (inc) |
Helpful Resources
Exploitability
| 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. |
Attack-Flow Graph
AI Powered Q&A
How does this vulnerability affect compliance with common standards and regulations (like GDPR, HIPAA)?:
The vulnerability in the WP ERP Pro plugin allows unauthenticated attackers to perform SQL Injection attacks that can extract sensitive information from the database.
Since WP ERP manages sensitive business data including HR, CRM, and accounting information, exposure of such data through this vulnerability could lead to non-compliance with data protection regulations such as GDPR and HIPAA, which require protection of personal and sensitive information.
Therefore, exploitation of this vulnerability could result in unauthorized data disclosure, potentially violating regulatory requirements for data confidentiality and security.
Can you explain this vulnerability to me?
The WP ERP Pro plugin for WordPress has a vulnerability known as SQL Injection in the 'search_key' parameter in all versions up to and including 1.5.1.
This vulnerability occurs because the plugin does not properly escape user-supplied input and does not sufficiently prepare the existing SQL query.
As a result, unauthenticated attackers can append additional SQL queries to the existing ones, potentially extracting sensitive information from the database.
How can this vulnerability impact me? :
This vulnerability can allow attackers to extract sensitive information from your database without authentication.
Since the vulnerability affects the WP ERP Pro plugin, which manages critical business operations such as HR, CRM, and accounting, the exposure of sensitive data could include employee information, customer data, financial records, and other confidential business information.
The CVSS score of 7.5 indicates a high severity, meaning the impact on confidentiality is significant, although integrity and availability are not directly affected.
How can this vulnerability be detected on my network or system? Can you suggest some commands?
This vulnerability involves SQL Injection via the 'search_key' parameter in the WP ERP Pro plugin. Detection typically involves monitoring for unusual or suspicious SQL queries or HTTP requests containing malicious payloads targeting the 'search_key' parameter.
Common detection methods include inspecting web server logs for requests with suspicious 'search_key' parameter values that contain SQL syntax such as quotes, semicolons, or SQL keywords (e.g., UNION, SELECT, OR 1=1).
You can use commands like the following to search your web server logs for suspicious requests:
- grep -i 'search_key=.*\(\|\'\|union\|select\|or 1=1\)' /var/log/apache2/access.log
- grep -i 'search_key=.*\(\|\'\|union\|select\|or 1=1\)' /var/log/nginx/access.log
Additionally, using web application firewalls (WAFs) or intrusion detection systems (IDS) with SQL Injection detection rules can help identify exploitation attempts.
What immediate steps should I take to mitigate this vulnerability?
To mitigate this SQL Injection vulnerability in the WP ERP Pro plugin, the immediate step is to update the plugin to a version later than 1.5.1 where the issue is fixed.
If an update is not immediately possible, consider temporarily disabling the WP ERP Pro plugin to prevent exploitation.
Additionally, implement or strengthen web application firewall (WAF) rules to block malicious requests targeting the 'search_key' parameter.
Monitor your logs closely for any signs of exploitation attempts and restrict access to the WordPress admin area to trusted IPs if feasible.