---
id: CVE-2025-14887
title: >-
  The twinklesmtp – Email Service Provider For WordPress plugin for WordPress is
  vulnerable to Stored Cross-Site Scripting via plugin's sender settings in all
  versions up to, and including, 1.03 due to insufficient input sanitization and
  o…
summary: >-
  The twinklesmtp – Email Service Provider For WordPress plugin for WordPress is
  vulnerable to Stored Cross-Site Scripting via plugin's sender settings in all
  versions up to, and including, 1.03 due to insufficient input sanitization and
  o…
severity: medium
cvss: 4.4
cvssVector: 'CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:L/I:L/A:N'
cwe:
  - CWE-79
published: '2026-01-07'
updated: '2026-09-30'
sourceUpdated: '2026-09-30T22:10:00.273'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2025-14887'
references:
  - url: >-
      https://plugins.trac.wordpress.org/browser/twinklesmtp/tags/1.0.3/backend/templates/views/settings/sender/default.php#L32
    label: security@wordfence.com
  - url: >-
      https://plugins.trac.wordpress.org/browser/twinklesmtp/tags/1.0.3/backend/templates/views/settings/sender/default.php#L36
    label: security@wordfence.com
  - url: >-
      https://plugins.trac.wordpress.org/browser/twinklesmtp/tags/1.0.3/backend/templates/views/settings/sender/default.php#L46
    label: security@wordfence.com
  - url: >-
      https://plugins.trac.wordpress.org/browser/twinklesmtp/tags/1.0.3/backend/templates/views/settings/sender/default.php#L50
    label: security@wordfence.com
  - url: >-
      https://plugins.trac.wordpress.org/browser/twinklesmtp/tags/1.0.3/backend/templates/views/settings/sender/default.php#L84
    label: security@wordfence.com
  - url: >-
      https://plugins.trac.wordpress.org/browser/twinklesmtp/tags/1.0.3/backend/templates/views/settings/sender/default.php#L88
    label: security@wordfence.com
  - url: >-
      https://www.wordfence.com/threat-intel/vulnerabilities/id/223d62cc-61ee-4818-9521-a772c1d57d59?source=cve
    label: security@wordfence.com
tags:
  - nvd
epss: 0.00236
epssPercentile: 0.13181
ingestedAt: '2026-09-30T22:27:27.714Z'
---

## Overview

The twinklesmtp – Email Service Provider For WordPress plugin for WordPress is vulnerable to Stored Cross-Site Scripting via plugin's sender settings in all versions up to, and including, 1.03 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with administrator-level permissions and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This only affects multi-site installations and installations where unfiltered_html has been disabled.

## Remediation

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