CVE-2025-31891 MEDIUM

CVE-2025-31891: WordPress Gosign – Posts Slider Block plugin <= 1.1.0 - Cross Site Scripting (XSS) vulnerability

Vendor Gosign
Product Gosign – Posts Slider Block
Weakness CWE-79 · XSS
Published April 1, 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 Gosign Gosign – Posts Slider Block gosign-posts-slider-block allows Stored XSS.This issue affects Gosign – Posts Slider Block: from n/a through <= 1.1.0.

Explanation of Vulnerability in Simple Terms

02Summary

Gosign Posts Slider Block versions 1.1.0 and earlier contain a cross-site scripting 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 site visitors across different security contexts.

What an attacker can do

03Attacker Capabilities

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

Potential impact on your site

04Site Impact

Site visitors' accounts and data are at risk if an authenticated user injects malicious code into slider content.

Conditions required to exploit

05Prerequisites

Attacker must have a low-privilege account on the site; victim must view a page containing the injected content.

Key dates

06Disclosure timeline

April 1, 2025 CVE published
April 28, 2026 Record updated