CVE-2026-8841

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.

PUBLISHED Reserved 2026-05-18 | Published 2026-06-09 | Updated 2026-06-09 | Assigner Wordfence

Problem types

CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Product status

Timeline

Credits

nail majdeddine finder

References

www.wordfence.com/...-10ad-4272-9880-dc01d4368683?source=cve

plugins.trac.wordpress.org/.../rocketchat-extra-settings.php

plugins.trac.wordpress.org/.../rocketchat-extra-settings.php

cve.org (CVE-2026-8841)

nvd.nist.gov (CVE-2026-8841)

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