PT-2026-47673 · Andrewabarber · Extra Settings For Rocketchat

Nail Majdeddine · Published 2026-06-09 · Updated 2026-06-09 · CVE-2026-8841

NVD

CVSS v3.1

6.4

Medium

Base vector

AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N

The Extra Settings for RocketChat plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'rocketchat' shortcode's 'title' attribute in versions up to, and including, 0.1. This is due to insufficient input sanitization and output escaping in the rxstg shortcode() function, which concatenates the user-supplied 'title' attribute directly into HTML output. 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.

Fix

XSS

Weakness Enumeration

CWE-79

Related Identifiers

CVE-2026-8841

Affected Products

Extra Settings For Rocketchat

References · 4

• https://nvd.nist.gov/vuln/detail/CVE-2026-8841 · Security Note
• https://wordfence.com/threat-intel/vulnerabilities/id/061eeba3-10ad-4272-9880-dc01d4368683?source=cve · Note
• https://plugins.trac.wordpress.org/browser/extra-settings-for-rocketchat/trunk/rocketchat-extra-settings.php#L350 · Note
• https://plugins.trac.wordpress.org/browser/extra-settings-for-rocketchat/trunk/rocketchat-extra-settings.php#L346 · Note