Cyber Posture

CVE-2025-26576

High

Published: 26 March 2025

Published
26 March 2025
Modified
23 April 2026
KEV Added
Patch
CVSS Score 7.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L
EPSS Score 0.0019 40.5th percentile
Risk Priority 14 60% EPSS · 20% KEV · 20% CVSS

Description

An adversary may steal web application or service session cookies and use them to gain access to web applications or Internet services as an authenticated user without needing credentials.

Security Summary

CVE-2025-26576 is an Improper Neutralization of Input During Web Page Generation vulnerability, classified as Reflected Cross-site Scripting (XSS) under CWE-79, in the WP Simple Slideshow plugin (wp-simple-slideshow) for WordPress developed by takumin. The issue affects all versions of WP Simple Slideshow from n/a through 1.0 inclusive. Published on 2025-03-26, it carries a CVSS v3.1 base score of 7.1 (AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L).

Attackers can exploit this vulnerability remotely over the network with low attack complexity and no required privileges, though it demands user interaction such as clicking a malicious link. Exploitation enables limited impacts on confidentiality, integrity, and availability within a changed scope, allowing execution of arbitrary scripts in the context of the affected user's browser session.

Patchstack has published an advisory with details on this vulnerability, available at https://patchstack.com/database/Wordpress/Plugin/wp-simple-slideshow/vulnerability/wordpress-wp-simple-slideshow-plugin-1-0-reflected-cross-site-scripting-xss-vulnerability?_s_id=cve.

Details

CWE(s)
CWE-79

MITRE ATT&CK Enterprise Techniques

T1185 Browser Session Hijacking Collection
Adversaries may take advantage of security vulnerabilities and inherent functionality in browser software to change content, modify user-behaviors, and intercept information as part of various browser session hijacking techniques.
T1539 Steal Web Session Cookie Credential Access
An adversary may steal web application or service session cookies and use them to gain access to web applications or Internet services as an authenticated user without needing credentials.
Why these techniques?

Reflected XSS allows arbitrary JavaScript execution in the victim's browser via malicious link, directly enabling browser session hijacking (T1185) and stealing web session cookies (T1539).

Confidence: MEDIUM · MITRE ATT&CK Enterprise v19.0

References