CVE-2026-4081
6.4 MEDIUMThe ZeM STL plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the [zemstl] shortcode in all versions up to and includ...
Published: 2026-06-02 · Last updated: 2026-06-02
Severity and scoring
- CVSS
- 6.4 MEDIUM
- Vector
- CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
- CWE
- CWE-79
Description
The ZeM STL plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the [zemstl] shortcode in all versions up to and including 1.0. This is due to insufficient input sanitization and output escaping on user-supplied shortcode attributes, specifically the 'url', 'color', and 'bgcolor' parameters. These attribute values are directly interpolated into HTML attribute context without being passed through esc_attr() or any other escaping function. 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.
Source: NVD
References
- [NVD]https://nvd.nist.gov/vuln/detail/CVE-2026-4081
- [Other]https://plugins.trac.wordpress.org/browser/zem-stl-viewer/tags/1.0/zemstl.php#L103
- [Other]https://plugins.trac.wordpress.org/browser/zem-stl-viewer/tags/1.0/zemstl.php#L104
- [Other]https://plugins.trac.wordpress.org/browser/zem-stl-viewer/tags/1.0/zemstl.php#L107
- [Other]https://plugins.trac.wordpress.org/browser/zem-stl-viewer/tags/1.0/zemstl.php#L74
- [Other]https://plugins.trac.wordpress.org/browser/zem-stl-viewer/trunk/zemstl.php#L103
- [Other]https://plugins.trac.wordpress.org/browser/zem-stl-viewer/trunk/zemstl.php#L104
- [Other]https://plugins.trac.wordpress.org/browser/zem-stl-viewer/trunk/zemstl.php#L107
- [Other]https://plugins.trac.wordpress.org/browser/zem-stl-viewer/trunk/zemstl.php#L74
- [Other]https://www.wordfence.com/threat-intel/vulnerabilities/id/07e415f9-42f1-4c80-a023-38f460f634d3?source=cve
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