CVE-2026-8841
Extra Settings for RocketChat <= 0.1 - Authenticated (Contributor+) Stored Cross-Site Scripting via Shortcode Attributes
CVSS Score
6.4
EPSS Score
0.0%
EPSS Percentile
9th
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.
| CWE | CWE-79 |
| Vendor | andrewabarber |
| Product | extra settings for rocketchat |
| Published | Jun 9, 2026 |
| Last Updated | Jun 9, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Affected Versions
andrewabarber / Extra Settings for RocketChat
0 ≤ 0.1
References
wordfence.com: https://www.wordfence.com/threat-intel/vulnerabilities/id/061eeba3-10ad-4272-9880-dc01d4368683?source=cve plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/browser/extra-settings-for-rocketchat/trunk/rocketchat-extra-settings.php#L350 plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/browser/extra-settings-for-rocketchat/trunk/rocketchat-extra-settings.php#L346
Credits
nail majdeddine