Cyber Posture

CVE-2026-28100

High

Published: 05 March 2026

Published
05 March 2026
Modified
22 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 0.0004 11.8th percentile
Risk Priority 14 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2026-28100 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 Drive-by Compromise (T1189); ranked at the 11.8th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.

Threat & Defense at a Glance

What attackers do: exploitation maps to Drive-by Compromise (T1189) and 2 other techniques.
Threat & Defense Details

Likely Mitigating ControlsAI

Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.

addresses: CWE-79

Penetration testing submits XSS payloads to web applications, detecting cross-site scripting flaws for subsequent remediation.

addresses: CWE-79

Validates web inputs to reject script-related content that could produce XSS.

addresses: CWE-79

Output validation against expected content can reject or sanitize script content in generated web pages, reducing XSS exploitability.

MITRE ATT&CK Enterprise TechniquesAI

T1189 Drive-by Compromise Initial Access
Adversaries may gain access to a system through a user visiting a website over the normal course of browsing.
T1204.001 Malicious Link Execution
An adversary may rely upon a user clicking a malicious link in order to gain execution.
T1566.002 Spearphishing Link Initial Access
Adversaries may send spearphishing emails with a malicious link in an attempt to gain access to victim systems.
Why these techniques?

Reflected XSS enables browser script execution via crafted malicious links, directly facilitating drive-by compromise and phishing link delivery with user interaction required.

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

NVD Description

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in LambertGroup UberSlider PerpetuumMobile uberSlider_perpetuummobile allows Reflected XSS.This issue affects UberSlider PerpetuumMobile: from n/a through <= 2.3.

Deeper analysisAI

CVE-2026-28100 is an Improper Neutralization of Input During Web Page Generation vulnerability, classified as Reflected Cross-site Scripting (XSS) under CWE-79, in the UberSlider PerpetuumMobile WordPress plugin (uberSlider_perpetuummobile) developed by LambertGroup. The issue affects all versions of the plugin from n/a through 2.3 inclusive, allowing malicious input to be reflected in dynamically generated web pages without proper neutralization.

The vulnerability 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), indicating network accessibility, low attack complexity, no required privileges, and user interaction such as clicking a crafted link. Remote attackers can exploit it by tricking authenticated or unauthenticated users into interacting with malicious payloads, achieving script execution in the victim's browser context with changed scope, resulting in low impacts to confidentiality, integrity, and availability, such as session hijacking or minor data manipulation.

The Patchstack advisory at https://patchstack.com/database/Wordpress/Plugin/uberSlider_perpetuummobile/vulnerability/wordpress-uberslider-perpetuummobile-plugin-2-3-reflected-cross-site-scripting-xss-vulnerability?_s_id=cve documents the reflected XSS vulnerability specific to uberSlider_perpetuummobile plugin version 2.3 in WordPress environments. Security practitioners should consult this reference for detailed analysis and recommended mitigations, such as plugin updates or removal if no patch exists.

Details

CWE(s)

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CVE-2025-22631Shared CWE-79
CVE-2025-22575Shared CWE-79
CVE-2025-23674Shared CWE-79
CVE-2025-23812Shared CWE-79

References