Cyber Resilience

CVE-2025-49066

High

Published: 22 January 2026

Published
22 January 2026
Modified
27 April 2026
KEV Added
—
Patch
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CVSS Score v3.1 7.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L
EPSS Score 0.0006 20.3th percentile
Risk Priority 14 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2025-49066 is a high-severity Cross-site Scripting (CWE-79) vulnerability. Its CVSS base score is 7.1 (High).

Operationally, exploitation aligns with the MITRE ATT&CK technique Exploit Public-Facing Application (T1190); ranked at the 20.3th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.

The strongest mitigations our analysis identified are NIST 800-53 SI-10 (Information Input Validation) and SI-15 (Information Output Filtering).

Deeper analysis

CVE-2025-49066 is an Improper Neutralization of Input During Web Page Generation vulnerability, classified as Reflected Cross-site Scripting (XSS) under CWE-79, in the Accordion Slider PRO WordPress plugin (accordion_slider_pro) developed by LambertGroup. This issue affects all versions of the plugin from n/a through 1.2 inclusive. The vulnerability was published on 2026-01-22 with 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).

An unauthenticated attacker (PR:N) can exploit this reflected XSS over the network (AV:N) with low attack complexity (AC:L), though it requires user interaction (UI:R), such as clicking a malicious link. The changed scope (S:C) enables execution of arbitrary scripts in the victim's browser context, potentially leading to limited impacts on confidentiality (C:L), integrity (I:L), and availability (A:L), including theft of session cookies, phishing, or minor page manipulation.

The Patchstack advisory (https://patchstack.com/database/Wordpress/Plugin/accordion_slider_pro/vulnerability/wordpress-accordion-slider-pro-plugin-1-2-reflected-cross-site-scripting-xss-vulnerability?_s_id=cve) documents the reflected XSS vulnerability specifically in Accordion Slider PRO version 1.2 and provides details for WordPress security practitioners on detection and response.

EU & UK References

Vulnerability details

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in LambertGroup Accordion Slider PRO accordion_slider_pro allows Reflected XSS.This issue affects Accordion Slider PRO: from n/a through <= 1.2.

CWE(s)
CWE-79

Related Threats

MITRE ATT&CK Enterprise TechniquesAI

T1190 Exploit Public-Facing Application Initial Access
Adversaries may attempt to exploit a weakness in an Internet-facing host or system to initially access a network.
attack.mitre.org →
T1059.007 JavaScript Execution
Adversaries may abuse various implementations of JavaScript for execution.
attack.mitre.org →
Why these techniques?

Reflected XSS in public-facing WordPress plugin directly enables exploitation of the web application (T1190) and arbitrary JavaScript execution in the victim browser (T1059.007).

Confidence: HIGH · MITRE ATT&CK Enterprise v18.1

CVEs Like This One

CVE-2026-3231Shared CWE-79
CVE-2025-23481Shared CWE-79
CVE-2025-69302Shared CWE-79
CVE-2025-23734Shared CWE-79
CVE-2025-23571Shared CWE-79
CVE-2025-65110Shared CWE-79
CVE-2026-24948Shared CWE-79
CVE-2025-27352Shared CWE-79
CVE-2025-30349Shared CWE-79
CVE-2026-3876Shared CWE-79

Affected Assets

Mitigating Controls

Mitigating Controls (NIST 800-53 r5) AI

SI-10 Information Input Validation good match
prevent

Requires validation and neutralization of untrusted input before it is used in web page generation, directly blocking the reflected XSS payload in accordion_slider_pro.

SI-15 Information Output Filtering good match
prevent

Mandates filtering or encoding of information output to browsers, preventing execution of attacker-supplied scripts in reflected XSS responses.

SI-4 System Monitoring partial match
detect

Enables monitoring of web requests and responses for anomalous script patterns that indicate attempted reflected XSS exploitation.

References