---
id: CVE-2026-111122
title: >-
  The SiteOrigin CSS plugin for WordPress is vulnerable to Stored DOM-Based
  Cross-Site Scripting via the 'href' parameter in all versions up to, and
  including, 1.6.7 due to insufficient input sanitization and output escaping
summary: >-
  The SiteOrigin CSS plugin for WordPress is vulnerable to Stored DOM-Based
  Cross-Site Scripting via the 'href' parameter in all versions up to, and
  including, 1.6.7 due to insufficient input sanitization and output escaping.
  This makes it…
severity: high
cvss: 7.2
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N'
cwe:
  - CWE-79
vendor: gpriday
product: SiteOrigin CSS
affected:
  - siteorigin_css <= 1.6.7
published: '2026-10-16'
updated: '2026-10-16'
sourceUpdated: '2026-10-16T15:17:13.390'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-111122'
references:
  - url: 'https://github.com/siteorigin/so-css/compare/1.6.7...1.6.8'
    label: security@wordfence.com
  - url: >-
      https://plugins.trac.wordpress.org/browser/so-css/tags/1.6.7/js/inspector.js#L276
    label: security@wordfence.com
  - url: >-
      https://plugins.trac.wordpress.org/browser/so-css/tags/1.6.7/js/inspector.js#L280
    label: security@wordfence.com
  - url: >-
      https://www.wordfence.com/threat-intel/vulnerabilities/id/97742c7c-4957-4597-9cc0-c9594e8c8482?source=cve
    label: security@wordfence.com
tags:
  - nvd
  - cve.org
epss: 0.00236
epssPercentile: 0.14558
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-10-16T14:34:19.378685Z'
ingestedAt: '2026-10-16T06:00:00.387Z'
---

## Overview

The SiteOrigin CSS plugin for WordPress is vulnerable to Stored DOM-Based Cross-Site Scripting via the 'href' parameter in all versions up to, and including, 1.6.7 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. Successful exploitation requires the malicious comment to be approved and an administrator to subsequently open the Visual Inspector and click the attacker's anchor link, both of which are plausible interactions during routine comment triage.

## Remediation

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