CVE-2025-58266 MEDIUM

CVE-2025-58266: WordPress Gianism plugin <= 6.0.0 - Cross Site Scripting (XSS) vulnerability

Vendor Fumiki Takahashi
Product Gianism
Weakness CWE-79 · XSS
Published September 22, 2025
Last update May 13, 2026
View on NVD All CVEs

CVSS base score

5.9/10
Attack vector Network
Attack complexity Low
Privileges required High
User interaction Required
Confidentiality Low
Integrity Low

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:H/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 Fumiki Takahashi Gianism gianism allows Stored XSS.This issue affects Gianism: from n/a through <= 6.0.0.

Explanation of Vulnerability in Simple Terms

02Summary

Gianism versions up to 6.0.0 contain a cross-site scripting (XSS) vulnerability that allows an authenticated administrator to inject malicious scripts. The vulnerability requires user interaction—typically clicking a crafted link—and can affect other users' sessions and data. The impact is limited to low-severity confidentiality, integrity, and availability breaches.

What an attacker can do

03Attacker Capabilities

Inject malicious scripts that execute in other users' browsers when they visit affected pages.

Potential impact on your site

04Site Impact

A malicious admin can steal session tokens, modify site content, or deface pages viewed by other administrators.

Conditions required to exploit

05Prerequisites

Attacker must have high-level admin privileges and the victim must click a malicious link or visit a crafted page.

Key dates

06Disclosure timeline

September 22, 2025 CVE published
May 13, 2026 Record updated