The Ultimate Video Player For WordPress <= 4.2.0 - Authenticated (Contributor+) Stored Cross-Site Scripting via 'link_url' Shortcode Attribute

Wordfence Intelligence > Vulnerability Database > The Ultimate Video Player For WordPress <= 4.2.0 - Authenticated (Contributor+) Stored Cross-Site Scripting via 'link_url' Shortcode Attribute

6.4

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N

CVE	CVE-2026-9125
CVSS	6.4 (Medium)
Publicly Published	June 11, 2026
Last Updated	June 12, 2026
Researcher	Dmitrii Ignatyev - CleanTalk Inc

Description

The Presto Player plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'link_url' parameter of the [presto_player_overlay] shortcode in versions up to, and including, 4.2.0 This is due to insufficient input sanitization and output escaping in the getOverlays() function, which copies the link_url shortcode attribute directly into the overlay configuration without scheme validation, allowing javascript: URIs to survive and be rendered as the href of a clickable anchor element by the presto-dynamic-overlay-ui web component. 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 an injected page.

Learn more about Cross-Site Scripting vulnerabilities and how to prevent them.

References

Vulnerability Details for Presto Player

Presto Player

Software Type	Plugin
Software Slug	presto-player (view on wordpress.org)
Patched?	Yes
Remediation	Update to version 4.2.1, or a newer patched version
Affected Version	<= 4.2.0
Patched Version	4.2.1

Recent vulnerabilities in Presto Player

The Ultimate Video Player For WordPress – by Presto Player <= 4.1.3 - Missing Authorization

5.3

CVE-2026-45442

May 19, 2026

Researcher: Bao - BlueRock

Presto Player <= 3.0.2 - Missing Authorization

4.3

CVE-2024-43285

Aug 16, 2024

Researcher: Rafie Muhammad

The Ultimate Video Player For WordPress <= 2.2.2 - Authenticated (Contributor+) Stored Cross-Site Scripting

6.4

CVE-2024-2428

Mar 20, 2024

Researcher: Dmitrii Ignatyev

#	Title	CVE ID	CVSS	Researchers	Date
1	The Ultimate Video Player For WordPress – by Presto Player <= 4.1.3 - Missing Authorization	CVE-2026-45442	5.3	Bao - BlueRock	May 19, 2026
2	Presto Player <= 3.0.2 - Missing Authorization	CVE-2024-43285	4.3	Rafie Muhammad	August 16, 2024
3	The Ultimate Video Player For WordPress <= 2.2.2 - Authenticated (Contributor+) Stored Cross-Site Scripting	CVE-2024-2428	6.4	Dmitrii Ignatyev	March 20, 2024

View more vulnerabilities in this software package View more vulnerabilities

This record contains material that is subject to copyright.

License: Defiant hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute this software vulnerability information. Any copy of the software vulnerability information you make for such purposes is authorized provided that you include a hyperlink to this vulnerability record and reproduce Defiant's copyright designation and this license in any such copy. Read more.

License: CVE Usage: MITRE hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute Common Vulnerabilities and Exposures (CVE®). Any copy you make for such purposes is authorized provided that you reproduce MITRE's copyright designation and this license in any such copy. Read more.

Have information to add, or spot any errors? Contact us at wfi-support@wordfence.com so we can make any appropriate adjustments.

Did you know Wordfence Intelligence provides free personal and commercial API access to our comprehensive WordPress vulnerability database, along with a free webhook integration to stay on top of the latest vulnerabilities added and updated in the database? Get started today!

Learn more

Want to get notified of the latest vulnerabilities that may affect your WordPress site?
Install Wordfence on your site today to get notified immediately if your site is affected by a vulnerability that has been added to our database.

Get Wordfence

The Wordfence Intelligence WordPress vulnerability database is completely free to access and query via API. Please review the documentation on how to access and consume the vulnerability data via API.

Documentation