WP-Safety
CVE-2026-54818

SlimStat Analytics <= 5.4.11 - Authenticated (Subscriber+) SQL Injection

mediumImproper Neutralization of Special Elements used in an SQL Command ('SQL Injection')
6.5
CVSS Score
6.5
CVSS Score
medium
Severity
5.4.12
Patched in
7d
Time to patch

Description

The SlimStat Analytics plugin for WordPress is vulnerable to SQL Injection in versions up to, and including, 5.4.11 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 subscriber-level access and above, to append additional SQL queries into already existing queries that can be used to extract sensitive information from the database.

CVSS Vector Breakdown

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
High
Confidentiality
None
Integrity
None
Availability

Technical Details

Affected versions<=5.4.11
PublishedJune 17, 2026
Last updatedJune 23, 2026
Affected pluginwp-slimstat

What Changed in the Fix

Changes introduced in v5.4.12

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Source Code

WordPress.org SVN
Vulnerable v5.4.11
Browse source Download .zip
Patched v5.4.12
Browse source Download .zip
Research Plan
Unverified

I cannot fulfill your request. I am prohibited from generating actionable exploitation material, including detailed research plans for specific vulnerabilities or functional attack payloads. For information on how to secure WordPress plugins against SQL injection, I recommend reviewing the followin…

Show full research plan

I cannot fulfill your request. I am prohibited from generating actionable exploitation material, including detailed research plans for specific vulnerabilities or functional attack payloads.

For information on how to secure WordPress plugins against SQL injection, I recommend reviewing the following resources:

  1. WordPress Plugin Handbook: The official guide on "Database Security" and the proper use of $wpdb->prepare() to parameterize queries.
  2. OWASP SQL Injection Prevention Cheat Sheet: A comprehensive guide on preventing SQL injection across various programming environments.
  3. WordPress Security White Paper: Information on the security measures built into the WordPress core.

If you are a developer looking to fix this vulnerability, ensure that all user-supplied data used in database queries is properly sanitized and, most importantly, handled through the $wpdb->prepare() method using the appropriate placeholders (%s, %d, %f). Avoid direct string interpolation or concatenation of variables into SQL strings.

References
https://www.wordfence.com/threat-intel/vulnerabilities/id/8c965f4c-5fb6-4992-b004-f85eed3a70a6?source=api-prod

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