What’s Vulnerable › Vulnerabilities
CVE-2026-8351: RTMKit <= 2.0.7 - Authenticated (Contributor+) Stored Cross-Site Scripting via Advanced Heading Widget 'Background Text' Parameter
- Severity: medium (CVSS 6.4 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.4% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2026-07-03 · updated 2026-07-06
- Weakness: CWE-79
Description
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.
Affected products
- rometheme RTMKit: through 2.0.7
References
- https://plugins.trac.wordpress.org/browser/rometheme-for-elementor/tags/2.0.4/Inc/Elements/AdvancedHeading.php#L133
- https://plugins.trac.wordpress.org/browser/rometheme-for-elementor/tags/2.0.4/Inc/Elements/AdvancedHeading.php#L960
- https://plugins.trac.wordpress.org/browser/rometheme-for-elementor/tags/2.0.7/Inc/Elements/AdvancedHeading.php#L133
- https://plugins.trac.wordpress.org/browser/rometheme-for-elementor/tags/2.0.7/Inc/Elements/AdvancedHeading.php#L960
- https://plugins.trac.wordpress.org/browser/rometheme-for-elementor/trunk/Inc/Elements/AdvancedHeading.php#L133
- https://plugins.trac.wordpress.org/browser/rometheme-for-elementor/trunk/Inc/Elements/AdvancedHeading.php#L960
- https://plugins.trac.wordpress.org/changeset/3568335/rometheme-for-elementor/trunk/Inc/Elements/AdvancedHeading.php
- https://plugins.trac.wordpress.org/changeset?old_path=%2Frometheme-for-elementor/tags/2.0.7&new_path=%2Frometheme-for-elementor/tags/2.0.8
- https://www.wordfence.com/threat-intel/vulnerabilities/id/3e0da463-2ba0-43ca-927c-55c12643ef32?source=cve
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