CVE-2026-27375 HIGH

CVE-2026-27375: WordPress Gecko theme <= 1.9.8 - Reflected Cross Site Scripting (XSS) vulnerability

Vendor Janstudio
Product Gecko
Weakness CWE-79 · XSS
Published March 5, 2026
Last update April 28, 2026
View on NVD All CVEs

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 JanStudio Gecko gecko allows Reflected XSS.This issue affects Gecko: from n/a through <= 1.9.8.

Explanation of Vulnerability in Simple Terms

02Summary

Gecko versions up to 1.9.8 contain a cross-site scripting vulnerability that allows attackers to inject malicious scripts into web pages viewed by other users. The vulnerability requires user interaction—victims must visit a crafted link or page. Successful exploitation can compromise user sessions, steal data, or deface site content. Update to a version newer than 1.9.8.

What an attacker can do

03Attacker Capabilities

Inject malicious scripts that execute in other users' browsers when they visit a crafted page.

Potential impact on your site

04Site Impact

User accounts and data at risk; site reputation damage if malicious content is displayed to visitors.

Conditions required to exploit

05Prerequisites

No authentication required. Victim must click a malicious link or visit an attacker-controlled page.

Key dates

06Disclosure timeline

March 5, 2026 CVE published
April 28, 2026 Record updated