CVE-2025-62913 MEDIUM

CVE-2025-62913: WordPress Opal Service plugin <= 1.9.1 - Cross Site Scripting (XSS) vulnerability

Vendor Wpopal
Product Opal Service
Weakness CWE-79 · XSS
Published October 27, 2025
Last update April 28, 2026

CVSS base score

6.5/10
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction Required
Confidentiality Low
Integrity Low

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:L/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 wpopal Opal Service opal-service allows Stored XSS.This issue affects Opal Service: from n/a through <= 1.9.1.

Explanation of Vulnerability in Simple Terms

02Summary

Opal Service versions up to 1.9.1 contain a stored cross-site scripting (XSS) vulnerability. An authenticated user with low privileges can inject malicious scripts that execute in other users' browsers when they view affected pages. The vulnerability requires user interaction and can affect the confidentiality, integrity, and availability of the site.

What an attacker can do

03Attacker Capabilities

Inject malicious scripts that run in other users' browsers and steal data or perform actions on their behalf.

Potential impact on your site

04Site Impact

Authenticated users can inject scripts affecting other visitors; site data and user sessions at risk if exploited.

Conditions required to exploit

05Prerequisites

Attacker must have a low-privilege account and the victim must visit a page containing the injected script.

Key dates

06Disclosure timeline

October 27, 2025 CVE published
April 28, 2026 Record updated