---
id: CVE-2026-15731
title: >-
  The WP Multilang – Translation and Multilingual Plugin plugin for WordPress is
  vulnerable to Stored Cross-Site Scripting via the post content in all versions
  up to, and including, 2.4.31 due to insufficient input sanitization and output
  …
summary: >-
  The WP Multilang – Translation and Multilingual Plugin plugin for WordPress is
  vulnerable to Stored Cross-Site Scripting via the post content in all versions
  up to, and including, 2.4.31 due to insufficient input sanitization and output
  …
severity: medium
cvss: 6.4
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N'
cwe:
  - CWE-79
vendor: magazine3
product: WP Multilang – Translation and Multilingual Plugin
affected:
  - wp_multilang_translation_and_multilingual_plugin <= 2.4.31
published: '2026-09-24'
updated: '2026-09-24'
sourceUpdated: '2026-09-24T14:40:36.103'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-15731'
references:
  - url: 'https://plugins.trac.wordpress.org/changeset/3637485/'
    label: security@wordfence.com
  - url: >-
      https://www.wordfence.com/threat-intel/vulnerabilities/id/31c7b12c-eaab-405e-90da-3c5e8ab47245?source=cve
    label: security@wordfence.com
tags:
  - nvd
  - cve.org
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-09-24T12:31:51.518408Z'
ingestedAt: '2026-09-24T09:40:50.750Z'
epss: 0.0025
epssPercentile: 0.14457
---

## Overview

The WP Multilang – Translation and Multilingual Plugin plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the post content in all versions up to, and including, 2.4.31 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with Contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

## Remediation

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