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.

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History

Tue, 09 Jun 2026 15:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Tue, 09 Jun 2026 09:15:00 +0000

Type Values Removed Values Added
First Time appeared Andrewabarber
Andrewabarber extra Settings For Rocketchat
Wordpress
Wordpress wordpress
Vendors & Products Andrewabarber
Andrewabarber extra Settings For Rocketchat
Wordpress
Wordpress wordpress

Tue, 09 Jun 2026 04:45:00 +0000

Type Values Removed Values Added
Description 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.
Title Extra Settings for RocketChat <= 0.1 - Authenticated (Contributor+) Stored Cross-Site Scripting via Shortcode Attributes
Weaknesses CWE-79
References
Metrics cvssV3_1

{'score': 6.4, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N'}


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cve-icon MITRE

Status: PUBLISHED

Assigner: Wordfence

Published:

Updated: 2026-06-09T13:27:40.166Z

Reserved: 2026-05-18T15:25:18.694Z

Link: CVE-2026-8841

cve-icon Vulnrichment

Updated: 2026-06-09T13:27:36.936Z

cve-icon NVD

Status : Deferred

Published: 2026-06-09T05:16:39.507

Modified: 2026-06-09T13:33:34.393

Link: CVE-2026-8841

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-06-09T08:56:20Z

Weaknesses