---
id: CVE-2026-4123
title: >-
  The RW Elephant Rental Inventory plugin for WordPress is vulnerable to Missing
  Authorization in all versions up to and including 2.3.13
summary: >-
  The RW Elephant Rental Inventory plugin for WordPress is vulnerable to Missing
  Authorization in all versions up to and including 2.3.13. This is due to a
  missing capability check on the toggle_cache() function which is hooked to the
  wp_a…
severity: medium
cvss: 4.3
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N'
cwe:
  - CWE-862
vendor: rwelephant01
product: RW Elephant Rental Inventory
affected:
  - rw_elephant_rental_inventory <= 2.3.13
published: '2026-09-22'
updated: '2026-09-22'
sourceUpdated: '2026-09-22T19:04:55.677'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-4123'
references:
  - url: >-
      https://plugins.trac.wordpress.org/browser/rw-elephant-rental-inventory/tags/2.3.11/lib/classes/class-options.php#L1524
    label: security@wordfence.com
  - url: >-
      https://plugins.trac.wordpress.org/browser/rw-elephant-rental-inventory/tags/2.3.11/lib/classes/class-options.php#L75
    label: security@wordfence.com
  - url: >-
      https://plugins.trac.wordpress.org/browser/rw-elephant-rental-inventory/trunk/lib/classes/class-options.php#L1524
    label: security@wordfence.com
  - url: >-
      https://plugins.trac.wordpress.org/browser/rw-elephant-rental-inventory/trunk/lib/classes/class-options.php#L75
    label: security@wordfence.com
  - url: 'https://plugins.trac.wordpress.org/changeset/3551183'
    label: security@wordfence.com
  - url: >-
      https://www.wordfence.com/threat-intel/vulnerabilities/id/5e46beca-e33b-4ed9-a0ab-612a6987174e?source=cve
    label: security@wordfence.com
tags:
  - nvd
  - cve.org
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-09-22T10:09:19.299773Z'
ingestedAt: '2026-09-22T08:00:27.692Z'
epss: 0.00354
epssPercentile: 0.26333
---

## Overview

The RW Elephant Rental Inventory plugin for WordPress is vulnerable to Missing Authorization in all versions up to and including 2.3.13. This is due to a missing capability check on the toggle_cache() function which is hooked to the wp_ajax_toggle_cache AJAX action. The function also lacks nonce verification. This makes it possible for authenticated attackers, with Subscriber-level access and above, to toggle the plugin's cache setting on or off by sending a POST request to admin-ajax.

## Remediation

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