---
id: CVE-2026-75134
title: >-
  SEOWriting plugin for WordPress through 1.12.5 contains a stored cross-site
  scripting vulnerability that allows authenticated contributors to inject
  malicious JavaScript by exploiting an overly permissive KSES allowlist that
  explicitly p…
summary: >-
  SEOWriting plugin for WordPress through 1.12.5 contains a stored cross-site
  scripting vulnerability that allows authenticated contributors to inject
  malicious JavaScript by exploiting an overly permissive KSES allowlist that
  explicitly p…
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
published: '2026-09-02'
updated: '2026-09-14'
sourceUpdated: '2026-09-14T21:07:11.883'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-75134'
references:
  - url: 'https://github.com/Elymaro/CVE/blob/main/WordPress/CVE-2026-75134.md'
    label: disclosure@vulncheck.com
  - url: 'https://wordpress.org/plugins/seowriting/'
    label: disclosure@vulncheck.com
  - url: >-
      https://www.vulncheck.com/advisories/seowriting-wordpress-plugin-stored-xss-via-iframe-onload
    label: disclosure@vulncheck.com
tags:
  - nvd
epss: 0.00321
epssPercentile: 0.22346
ingestedAt: '2026-09-14T21:15:17.420Z'
---

## Overview

SEOWriting plugin for WordPress through 1.12.5 contains a stored cross-site scripting vulnerability that allows authenticated contributors to inject malicious JavaScript by exploiting an overly permissive KSES allowlist that explicitly permits the onload event handler on iframe elements. Attackers can store crafted JavaScript payloads in post content that execute when the affected post is viewed or previewed by higher-privileged users, potentially leading to privilege escalation or account compromise.

## Remediation

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