SEPTEMBER 23, 2026
Live Feed
Back to database
Case File

CVE-2026-5820

MEDIUM · CVSS 6.4 EPSS 0.23%

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2026-04-22 · Last synced 2026-08-04

CyberRota Analysis

This is a medium severity vulnerability with a CVSS score of 6.4. It affects WordPress. Exploitation may require the attacker to be authenticated.

CVE
CVE-2026-5820
Severity
MEDIUM
CVSS
6.4
EPSS
0.23%
WordPress

Original NVD Description

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.