CVE-2026-114178
Received Received - Intake

Stored XSS in W3 Total Cache WordPress Plugin

Publication date: 2026-10-24

Last updated on: 2026-10-24

Assigner: Patchstack

Description
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Bold Grid W3 Total Cache w3-total-cache allows Stored XSS.This issue affects W3 Total Cache: from n/a through 2.10.7.

CVSS Scores

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Meta Information

Published
2026-10-24
Last Modified
2026-10-24
Generated
2026-10-24
AI Q&A
2026-10-24
EPSS Evaluated
N/A
NVD
CVE-2026-114178
EUVD
EUVD-2026-109252

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
Bold Grid W3 Total Cache 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 Bold Grid W3 Total Cache plugin for WordPress. It allows attackers to inject malicious scripts into web pages by exploiting improper input neutralization during page generation. The vulnerability affects versions up to 2.10.7.

Detection Guidance

To detect this vulnerability, check if your W3 Total Cache plugin version is 2.10.7 or below. Use commands like 'wp plugin list' in WordPress CLI or inspect plugin files for version details in /wp-content/plugins/w3-total-cache/

Monitor web traffic for unusual scripts or payloads in form submissions or URLs. Check server logs for suspicious POST requests or injected scripts.

Impact Analysis

Attackers can steal visitor data, hijack accounts, or perform actions on behalf of users. Exploitation requires user interaction like clicking a link or submitting a form. The impact is moderate with a CVSS score of 7.1, indicating potential for widespread attacks.

Mitigation Strategies

Immediately update W3 Total Cache to version 2.11.0 or later. If updating is not possible, apply Patchstack's mitigation rule to block attacks until the update is applied.

Review and remove any unauthorized admin accounts or suspicious user activity. Scan your website for existing malicious scripts or backdoors.

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