CVE-2026-16092
Received Received - Intake

Second-Order SQL Injection in Improved Save Button WordPress Plugin

Publication date: 2026-07-30

Last updated on: 2026-07-30

Assigner: Wordfence

Description
The Improved Save Button plugin for WordPress is vulnerable to second-order SQL Injection via 'meta_key' Custom Field via 'Save and Duplicate' Action in all versions up to, and including, 1.2.1 due to insufficient escaping on the user supplied parameter and lack of sufficient preparation on the existing SQL query. This makes it possible for authenticated attackers, with author-level access and above, to append additional SQL queries into already existing queries that can be used to extract sensitive information from the database.

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Meta Information

Published
2026-07-30
Last Modified
2026-07-30
Generated
2026-07-30
AI Q&A
2026-07-30
EPSS Evaluated
N/A
NVD
CVE-2026-16092
EUVD
EUVD-2026-50951

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
improved_save_button improved_save_button to 1.2.1 (inc)

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

This is a second-order SQL Injection vulnerability in the Improved Save Button WordPress plugin. It exists in versions up to 1.2.1 due to improper escaping of the 'meta_key' Custom Field parameter during the 'Save and Duplicate' action. Authenticated attackers with author-level access or higher can inject malicious SQL queries into existing database queries to extract sensitive information.

Detection Guidance

Detection requires checking for the Improved Save Button plugin versions up to 1.2.1 in WordPress. Inspect plugin files for suspicious SQL patterns in 'meta_key' Custom Field handling. Review database queries for unexpected injections or unauthorized data access.

Impact Analysis

If exploited, this vulnerability allows attackers to steal sensitive data from your WordPress database, such as user credentials, personal information, or other confidential data. It requires an attacker to have at least author-level access to your site.

Compliance Impact

This vulnerability could lead to unauthorized access and exfiltration of personal data, violating GDPR and HIPAA requirements for data protection and security. Organizations may face legal penalties, fines, or reputational damage if exploited.

Mitigation Strategies

Immediately update the Improved Save Button plugin to the latest version beyond 1.2.1. Remove or disable the plugin if updates are unavailable. Restrict author-level access to reduce attack surface. Monitor database activity for unusual queries.

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