CVE-2026-109893
Deferred Deferred - Pending Action

Stored XSS in Presto Player WordPress Plugin

Publication date: 2026-10-15

Last updated on: 2026-10-16

Assigner: Patchstack

Description
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Brainstorm Force Presto Player presto-player allows Stored XSS.This issue affects Presto Player: from n/a through 4.5.3.

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Meta Information

Published
2026-10-15
Last Modified
2026-10-16
Generated
2026-10-19
AI Q&A
2026-10-16
EPSS Evaluated
2026-10-18
NVD
CVE-2026-109893
EUVD
EUVD-2026-102254

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
Brainstorm Force Presto Player 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.

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Executive Summary

This is a Stored Cross-Site Scripting (XSS) vulnerability in the Presto Player plugin by Brainstorm Force. It allows attackers to inject malicious scripts into web pages that are stored and executed when other users view the page. The flaw exists due to improper neutralization of user input during web page generation.

Detection Guidance

To detect this Stored XSS vulnerability in Presto Player, inspect WordPress sites using the plugin for suspicious JavaScript payloads in stored inputs like player settings or content. Check browser developer tools for unexpected scripts or redirects. Review plugin version; versions up to 4.5.3 are affected.

Impact Analysis

An attacker could exploit this to steal user sessions, deface websites, or perform actions on behalf of users. Users with access to the vulnerable plugin could have their credentials compromised or be redirected to malicious sites.

Compliance Impact

This vulnerability could lead to data breaches, violating GDPR (data protection) and HIPAA (healthcare data privacy). Organizations may face fines or legal consequences for failing to protect user data from unauthorized access or manipulation.

Mitigation Strategies

Immediately update Presto Player to the latest version beyond 4.5.3. If an update is unavailable, disable the plugin temporarily until a patch is released. Implement input validation and output encoding in WordPress configurations to prevent XSS attacks.

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