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CVE-2026-116400— WordPress Button Block plugin <= 1.2.7 - Cross Site Scripting (XSS) vulnerability

Quick assessment

Affected
bPlugins Button Block
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.

bPlugins Button Block 插件中的 button-block 组件存在“网页生成期间输入未正确中和”的漏洞（即跨站脚本攻击，XSS），导致存储型跨站脚本攻击（Stored XSS）。该问题影响 Button Block 插件的所有版本，从未知版本（n/a）至 1.2.7。

CVSS 6.5 · Medium

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2026-116400

Vulnerability Information
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Vulnerability Title
WordPress Button Block plugin <= 1.2.7 - 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 bPlugins Button Block button-block allows Stored XSS.This issue affects Button Block: from n/a through 1.2.7.
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
bPlugins Button Block 0 ~ 1.2.7 -

II. Public POCs for CVE-2026-116400

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III. Intelligence Information for CVE-2026-116400

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Vendor Advisories for CVE-2026-116400 (1)

Same Patch Batch · bPlugins · 2026-10-26 · 8 CVEs total

CVE-2026-115613 6.5 MEDIUM WordPress Image Gallery block – Create and display photo gallery/photo album. plugin <= 2.
CVE-2026-115961 6.5 MEDIUM WordPress B Slider plugin <= 2.2.2 - Cross Site Scripting (XSS) vulnerability
CVE-2026-115955 6.5 MEDIUM WordPress Advanced Post Block - Post Grid for WordPress block editor plugin <= 2.5.1 - Cro
CVE-2026-115956 6.5 MEDIUM WordPress Panorama Viewer – 360 Degree Image + Video Viewer plugin <= 1.8.3 - Cross Site S
CVE-2026-116395 6.5 MEDIUM WordPress LightBox Block plugin <= 1.2.0 - Cross Site Scripting (XSS) vulnerability
CVE-2026-116398 6.5 MEDIUM WordPress Content Slider Block plugin <= 3.2.1 - Cross Site Scripting (XSS) vulnerability
CVE-2026-115966 6.5 MEDIUM WordPress Typing Text – Give your texts many typing effects plugin <= 2.2.0 - Cross Site S

IV. Related Vulnerabilities

Same product: Button Block
Same vendor: bPlugins
Same weakness: CWE-79