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CVE-2026-105890— WordPress Gutenberg Blocks by Kadence Blocks plugin <= 3.7.12 - 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.

在 Liquid Web / StellarWP 由 Kadence Blocks 开发的 Gutenberg 区块插件中，存在一个“网页生成期间输入中和不当”（即跨站脚本攻击，Cross-site Scripting，XSS）漏洞。该漏洞可导致存储型跨站脚本攻击（Stored XSS）。此问题影响 Kadence Blocks 的 Gutenberg 区块插件，受影响的版本范围是从未知起始版本至 3.7.12。

CVSS 6.5 · Medium

Affected Version Matrix 1

VendorProduct Version RangeStatus
Liquid Web / StellarWP Gutenberg Blocks by Kadence Blocks ≤ 3.7.12 affected
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I. Basic Information for CVE-2026-105890

Vulnerability Information
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Vulnerability Title
WordPress Gutenberg Blocks by Kadence Blocks plugin <= 3.7.12 - 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 3.7.12.
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 ~ 3.7.12 -

II. Public POCs for CVE-2026-105890

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III. Intelligence Information for CVE-2026-105890

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Other References for CVE-2026-105890 (1)

Same Patch Batch · Liquid Web / StellarWP · 2026-10-08 · 6 CVEs total

CVE-2026-66479 7.1 HIGH WordPress WPComplete plugin <= 2.9.5.6 - CSRF to Stored XSS vulnerability
CVE-2026-105888 5.4 MEDIUM WordPress Event Tickets plugin <= 5.30.0.1 - Broken Access Control vulnerability
CVE-2026-106600 5.3 MEDIUM WordPress GiveWP plugin <= 4.18.0 - Broken Access Control vulnerability
CVE-2026-105893 5.3 MEDIUM WordPress Event Tickets plugin <= 5.30.0.1 - Broken Access Control vulnerability
CVE-2026-105891 4.3 MEDIUM WordPress Event Tickets plugin <= 5.30.0.1 - Broken Access Control vulnerability

IV. Related Vulnerabilities

Same product: Gutenberg Blocks by Kadence Blocks
Same vendor: Liquid Web / StellarWP
Same weakness: CWE-79

V. Comments for CVE-2026-105890

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