cvedb.io
CVE-2026-5820
MEDIUM · CVSS 6.4
EPSS exploitation probability: 0%
Published 2026-04-22T09:16:25.977 · Last modified 2026-06-17T10:59:41.893

Summary

The Zypento Blocks plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the Table of Contents block in all versions up to, and including, 1.0.6. This is due to the front-end TOC rendering script reading heading text via `innerText` and inserting it into the page using `innerHTML` without proper sanitization. This makes it possible for authenticated attackers, with Author-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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References

This product uses data from the NVD API but is not endorsed or certified by the NVD. Informational only; not professional security advice.