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CVE-2026-40804— WordPress aBlocks plugin <= 2.16.0 - Cross Site Scripting (XSS) vulnerability

Quick assessment

Affected
Kodezen LLC aBlocks
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.

Kodezen LLC 的 aBlocks 插件存在反射型跨站脚本（Reflected XSS）漏洞，该漏洞属于“Web 页面生成过程中输入未正确中和”类型。受影响版本为：aBlocks 从 n/a 至 2.16.0（含）。

CVSS 7.1 · High

Possible ATT&CK Techniques 1 AI

T1189 · Drive-by Compromise

Affected Version Matrix 1

VendorProduct Version RangeStatus
Kodezen LLC aBlocks ≤ 2.16.0 affected
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I. Basic Information for CVE-2026-40804

Vulnerability Information
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Vulnerability Title
WordPress aBlocks plugin <= 2.16.0 - 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 Kodezen LLC aBlocks ablocks allows Reflected XSS.This issue affects aBlocks: from n/a through 2.16.0.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/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
Kodezen LLC aBlocks 0 ~ 2.16.0 -

II. Public POCs for CVE-2026-40804

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III. Intelligence Information for CVE-2026-40804

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Vendor Advisories for CVE-2026-40804 (1)

IV. Related Vulnerabilities

Same product: aBlocks
Same vendor: Kodezen LLC
Same weakness: CWE-79

V. Comments for CVE-2026-40804

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