---
id: CVE-2026-17576
title: >-
  The InfiniteWP Client plugin for WordPress is vulnerable to SQL Injection via
  the get_comments action in versions up to, and including, 1.13.9
summary: >-
  The InfiniteWP Client plugin for WordPress is vulnerable to SQL Injection via
  the get_comments action in versions up to, and including, 1.13.9. This is due
  to insufficient escaping on the array-key names supplied in the JSON request
  body…
severity: medium
cvss: 6.5
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N'
cwe:
  - CWE-89
vendor: revmakx
product: InfiniteWP Client
affected:
  - infinitewp_client <= 1.13.9
published: '2026-09-18'
updated: '2026-09-18'
sourceUpdated: '2026-09-18T15:17:06.293'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-17576'
references:
  - url: >-
      https://plugins.trac.wordpress.org/browser/iwp-client/tags/1.13.6/addons/comments/comments.class.php#L57
    label: security@wordfence.com
  - url: >-
      https://plugins.trac.wordpress.org/browser/iwp-client/tags/1.13.6/addons/comments/comments.class.php#L71
    label: security@wordfence.com
  - url: >-
      https://plugins.trac.wordpress.org/browser/iwp-client/tags/1.13.6/addons/comments/comments.class.php#L80
    label: security@wordfence.com
  - url: >-
      https://plugins.trac.wordpress.org/browser/iwp-client/tags/1.13.6/init.php#L131
    label: security@wordfence.com
  - url: >-
      https://plugins.trac.wordpress.org/browser/iwp-client/tags/1.13.6/init.php#L1651
    label: security@wordfence.com
  - url: >-
      https://plugins.trac.wordpress.org/changeset?reponame=&old=3655042%40iwp-client&new=3655042%40iwp-client
    label: security@wordfence.com
  - url: >-
      https://www.wordfence.com/threat-intel/vulnerabilities/id/05c50442-570b-45cf-816a-c7a5b712ba21?source=cve
    label: security@wordfence.com
tags:
  - nvd
  - cve.org
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-09-18T14:18:10.437275Z'
epss: 0.00275
epssPercentile: 0.17736
ingestedAt: '2026-09-18T07:37:23.430Z'
---

## Overview

The InfiniteWP Client plugin for WordPress is vulnerable to SQL Injection via the get_comments action in versions up to, and including, 1.13.9. This is due to insufficient escaping on the array-key names supplied in the JSON request body before use in a SQL statement: IWP_MMB_Comment::get_comments() calls extract() on $args (which silently skips keys that are not valid PHP variable names) but a second foreach($args as $checkbox => $checkbox_val) processes every key, strips the 'iwp_get_comments_' prefix with str_replace(), wraps the remainder in single quotes, and imploded it into an IN(...) clause that is executed via $wpdb->get_results() with no prepare(). Because the request body is read from php://input and JSON-decoded, wp_magic_quotes() never touches the data, so quote characters in keys pass through unaltered. This makes it possible for authenticated attackers, with administrator-level access and above (an administrator can register their own public key via add_site using the plugin's WP-admin-generated activation_key and then issue signed get_comments requests), to append additional SQL queries into already existing queries that can be used to extract sensitive information from the database.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.