Medium severity6.4NVD Advisory· Published Feb 11, 2026· Updated Apr 15, 2026

CVE-2026-1821

Description

The Microtango plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'restkey' parameter of the mt_reservation shortcode in all versions up to, and including, 0.9.29 due to insufficient input sanitization and output escaping. 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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Patches

Vulnerability mechanics

References

plugins.trac.wordpress.org/browser/microtango/tags/0.9.29/microtango-init.phpnvd
plugins.trac.wordpress.org/browser/microtango/trunk/microtango-init.phpnvd
plugins.trac.wordpress.org/changeset/3455880/nvd
www.wordfence.com/threat-intel/vulnerabilities/id/27657d29-e834-4f05-8fe9-7db0ab96f67dnvd

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