CVE-2026-39742— WordPress Gutenberg Blocks by Kadence Blocks plugin <= 3.8.0.2 - Cross Site Scripting (XSS) vulnerability
Quick assessment
Affected
Liquid Web / StellarWP Gutenberg Blocks by Kadence Blocks
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
Liquid Web / StellarWP 的 Gutenberg Blocks（由 Kadence Blocks 开发，插件名为 kadence-blocks）存在“在生成网页时未正确清理输入”的漏洞，即跨站脚本攻击（XSS）漏洞，可导致存储型 XSS。该问题影响 Kadence Blocks 的 Gutenberg Blocks 插件，版本范围从未知（n/a）至 3.8.0.2（含）。
Possible ATT&CK Techniques 1 AI
T1190 · Exploit Public-Facing ApplicationAffected Version Matrix 1
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Liquid Web / StellarWP | Gutenberg Blocks by Kadence Blocks | ≤ 3.8.0.2 |
affected |
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I. Basic Information for CVE-2026-39742
Vulnerability Information
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Vulnerability Title
WordPress Gutenberg Blocks by Kadence Blocks plugin <= 3.8.0.2 - Cross Site Scripting (XSS) vulnerability
Source: CVE Program / CVE List V5
Vulnerability Description
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Liquid Web / StellarWP Gutenberg Blocks by Kadence Blocks kadence-blocks allows Stored XSS.This issue affects Gutenberg Blocks by Kadence Blocks: from n/a through 3.8.0.2.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
在Web页面生成时对输入的转义处理不恰当(跨站脚本)
Source: CVE Program / CVE List V5
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| Liquid Web / StellarWP | Gutenberg Blocks by Kadence Blocks | 0 ~ 3.8.0.2 | - |
|
II. Public POCs for CVE-2026-39742
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POC
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Other References for CVE-2026-39742 (1)
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