---
id: CVE-2026-8351
title: >-
  The RTMKit plugin for WordPress is vulnerable to Stored Cross-Site Scripting
  via the Advanced Heading widget's 'Background Text' parameter in versions up
  to, and including, 2.0.7 This is due to insufficient output escaping on the
  'backgr…
summary: >-
  The RTMKit plugin for WordPress is vulnerable to Stored Cross-Site Scripting
  via the Advanced Heading widget's 'Background Text' parameter in versions up
  to, and including, 2.0.7 This is due to insufficient output escaping on the
  'backgr…
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: '2026-07-03'
updated: '2026-07-03'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-8351'
references:
  - url: >-
      https://plugins.trac.wordpress.org/browser/rometheme-for-elementor/tags/2.0.4/Inc/Elements/AdvancedHeading.php#L133
    label: security@wordfence.com
  - url: >-
      https://plugins.trac.wordpress.org/browser/rometheme-for-elementor/tags/2.0.4/Inc/Elements/AdvancedHeading.php#L960
    label: security@wordfence.com
  - url: >-
      https://plugins.trac.wordpress.org/browser/rometheme-for-elementor/tags/2.0.7/Inc/Elements/AdvancedHeading.php#L133
    label: security@wordfence.com
  - url: >-
      https://plugins.trac.wordpress.org/browser/rometheme-for-elementor/tags/2.0.7/Inc/Elements/AdvancedHeading.php#L960
    label: security@wordfence.com
  - url: >-
      https://plugins.trac.wordpress.org/browser/rometheme-for-elementor/trunk/Inc/Elements/AdvancedHeading.php#L133
    label: security@wordfence.com
  - url: >-
      https://plugins.trac.wordpress.org/browser/rometheme-for-elementor/trunk/Inc/Elements/AdvancedHeading.php#L960
    label: security@wordfence.com
  - url: >-
      https://plugins.trac.wordpress.org/changeset/3568335/rometheme-for-elementor/trunk/Inc/Elements/AdvancedHeading.php
    label: security@wordfence.com
  - url: >-
      https://plugins.trac.wordpress.org/changeset?old_path=%2Frometheme-for-elementor/tags/2.0.7&new_path=%2Frometheme-for-elementor/tags/2.0.8
    label: security@wordfence.com
  - url: >-
      https://www.wordfence.com/threat-intel/vulnerabilities/id/3e0da463-2ba0-43ca-927c-55c12643ef32?source=cve
    label: security@wordfence.com
tags:
  - nvd
ingestedAt: '2026-07-04T06:55:48.817Z'
epss: 0.00408
epssPercentile: 0.34799
---

## Overview

The RTMKit plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the Advanced Heading widget's 'Background Text' parameter in versions up to, and including, 2.0.7 This is due to insufficient output escaping on the 'background_text_heading' setting in the render() function, which concatenates the value directly into an HTML attribute without applying esc_attr(). 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.