Cyber Resilience

CVE-2026-28102

High

Published: 05 March 2026

Published
05 March 2026
Modified
22 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 0.0004 14.4th percentile
Risk Priority 14 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2026-28102 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 14.4th 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-2026-28102 is an Improper Neutralization of Input During Web Page Generation vulnerability, classified as Reflected Cross-site Scripting (XSS) under CWE-79, in the LambertGroup UberSlider Classic WordPress plugin (uberSlider_classic). The issue affects versions from n/a through 2.5 inclusive, as published on 2026-03-05.

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 privileges required, and user interaction needed, with changed scope and low impacts on confidentiality, integrity, and availability. Remote attackers can exploit it by tricking authenticated or unauthenticated users into interacting with malicious input, such as via a crafted link, to inject and execute arbitrary scripts in the victim's browser context.

Mitigation details are available in the Patchstack advisory at https://patchstack.com/database/Wordpress/Plugin/uberSlider_classic/vulnerability/wordpress-uberslider-classic-plugin-2-5-reflected-cross-site-scripting-xss-vulnerability?_s_id=cve.

EU & UK References

Vulnerability details

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in LambertGroup UberSlider Classic uberSlider_classic allows Reflected XSS.This issue affects UberSlider Classic: from n/a through <= 2.5.

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 →
T1204.001 Malicious Link Execution
An adversary may rely upon a user clicking a malicious link in order to gain execution.
attack.mitre.org →
Why these techniques?

Reflected XSS in public-facing WordPress plugin directly enables exploitation of the web application (T1190) to execute arbitrary JavaScript in the victim's browser (T1059.007) when the user clicks a crafted malicious link (T1204.001).

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

CVEs Like This One

CVE-2024-47140Shared CWE-79
CVE-2025-68891Shared CWE-79
CVE-2025-69054Shared CWE-79
CVE-2025-22714Shared CWE-79
CVE-2025-23473Shared CWE-79
CVE-2024-13668Shared CWE-79
CVE-2025-25118Shared CWE-79
CVE-2025-67918Shared CWE-79
CVE-2025-53222Shared CWE-79
CVE-2025-28890Shared CWE-79

Affected Assets

Mitigating Controls

Mitigating Controls (NIST 800-53 r5) AI

SI-10 Information Input Validation good match
prevent

Directly requires validation and neutralization of untrusted input before it is used in web page generation, blocking the reflected XSS payload in uberSlider_classic.

SI-15 Information Output Filtering good match
prevent

Requires filtering or encoding of information output to browsers, preventing arbitrary script execution from the crafted reflected input.

SI-3 Malicious Code Protection partial match
preventdetect

Provides mechanisms to detect and block malicious script injection attempts that match the reflected XSS pattern described in the CVE.

References