CVE-2025-53563 HIGH

CVE-2025-53563: WordPress Youtube Vimeo Video Player and Slider <= 3.8 - Cross Site Scripting (XSS) Vulnerability

Vendor Lambertgroup
Product Youtube Vimeo Video Player and Slider
Weakness CWE-79 · XSS
Published August 20, 2025
Last update April 28, 2026

CVSS base score

7.1/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction Required
Confidentiality Low
Integrity Low

CVSS vector

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

What the vulnerability does

01Description

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in LambertGroup Youtube Vimeo Video Player and Slider video_player_youtube_vimeo allows Reflected XSS.This issue affects Youtube Vimeo Video Player and Slider: from n/a through <= 3.8.

Explanation of Vulnerability in Simple Terms

02Summary

The Youtube Vimeo Video Player and Slider plugin contains a cross-site scripting (XSS) vulnerability in versions 3.8 and earlier. An attacker can inject malicious scripts that execute in the browsers of site visitors, potentially stealing session tokens or redirecting users. The vulnerability requires user interaction—typically clicking a malicious link—and affects the broader site scope beyond the plugin itself.

What an attacker can do

03Attacker Capabilities

Inject malicious JavaScript that runs in visitors' browsers, stealing cookies or redirecting users to phishing sites.

Potential impact on your site

04Site Impact

Visitors' sessions and credentials can be compromised; site reputation and user trust are at risk.

Conditions required to exploit

05Prerequisites

No authentication required. Victim must click a malicious link or visit a compromised page containing the payload.

Key dates

06Disclosure timeline

August 20, 2025 CVE published
April 28, 2026 Record updated