CVE-2026-5092
Deferred Deferred - Pending Action

Stored XSS in Greenshift WordPress Plugin

Publication date: 2026-08-26

Last updated on: 2026-08-26

Assigner: Wordfence

Description
The Greenshift – animation and page builder blocks plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the customapi action handler in versions up to, and including, 12.8.9. This is due to insufficient sanitization of API responses before output via innerHTML. This makes it possible for authenticated attackers, with Contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses the injected page.

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Meta Information

Published
2026-08-26
Last Modified
2026-08-26
Generated
2026-08-26
AI Q&A
2026-08-26
EPSS Evaluated
N/A
NVD
CVE-2026-5092
EUVD
EUVD-2026-66406

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
greenshift animation_and_page_builder_blocks_plugin to 12.8.9 (inc)

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.

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Executive Summary

This vulnerability is a Stored Cross-Site Scripting (XSS) flaw in the Greenshift plugin for WordPress. It allows authenticated attackers with Contributor-level access or higher to inject malicious scripts into web pages via the customapi action handler. The issue arises from insufficient sanitization of API responses before they are output using innerHTML.

Impact Analysis

An attacker could exploit this to inject scripts that run when users visit the affected pages. This could lead to theft of cookies, session tokens, or other sensitive data. It may also allow attackers to perform actions on behalf of users or deface websites.

Compliance Impact

This vulnerability could lead to unauthorized access to user data, violating GDPR and HIPAA requirements for data protection and confidentiality. Organizations may face compliance penalties if exploited.

Mitigation Strategies

Update the Greenshift – animation and page builder blocks plugin to the latest version, which addresses the Stored Cross-Site Scripting vulnerability in the customapi action handler.

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