CVE-2026-116400
Deferred Deferred - Pending Action

Stored XSS in Button Block WordPress Plugin

Vulnerability report for CVE-2026-116400, including description, CVSS score, EPSS score, affected products, exploitability, helpful resources, and attack-flow context.

Publication date: 2026-10-26

Last updated on: 2026-10-26

Assigner: Patchstack

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.

CVSS Scores

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Meta Information

Published
2026-10-26
Last Modified
2026-10-26
Generated
2026-10-26
AI Q&A
2026-10-26
EPSS Evaluated
N/A
NVD
EUVD

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
bPlugins Button Block 0

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-79 The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.

Attack-Flow Graph

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Executive Summary

This is a Stored Cross-Site Scripting (XSS) vulnerability in the bPlugins Button Block plugin. It occurs when user input is not properly neutralized during web page generation, allowing malicious scripts to be stored and executed when others view the page.

Impact Analysis

An attacker could inject malicious scripts into the plugin, which would then execute for users visiting the affected page. This could lead to theft of session cookies, defacement of the website, or redirection to malicious sites.

Compliance Impact

This vulnerability could lead to unauthorized access to user data, violating GDPR's data protection requirements and HIPAA's security rules for protected health information. Organizations may face fines or penalties for failing to protect user data.

Mitigation Strategies

Update the bPlugins Button Block plugin to the latest version (1.2.7 or higher) to address the Stored XSS vulnerability. Disable the plugin temporarily if an update is not immediately available.

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