Vulnerability · Published Mar 19, 2026 · Assigned by Patchstack
CVE-2026-25438WordPress Gutenberg Blocks – Unlimited blocks For Gutenberg plugin <= 1.2.8 - Reflected Cross Site Scripting (XSS) vulnerability
High 7.1
In plain English
A high-severity cross-site scripting in Gutenberg Blocks from ThemeHunk. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 5% of all known vulnerabilities).
Severity (CVSS 3.1)7.1High
Exploit odds (30 days)0.2%top 95.3% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in ThemeHunk Gutenberg Blocks unlimited-blocks allows Reflected XSS.This issue affects Gutenberg Blocks: from n/a through <= 1.2.8.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| ThemeHunk | Gutenberg Blocks | 0 – through 1.2.8 |
Weakness: CWE-79 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L