Cyber Resilience

CVE-2025-68839

High

Published: 22 January 2026

Published
22 January 2026
Modified
15 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-2025-68839 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-2025-68839 is an Improper Neutralization of Input During Web Page Generation vulnerability, enabling Reflected Cross-Site Scripting (XSS) as classified under CWE-79, in the Easy Theme Options WordPress plugin by Remi Corson. The issue affects the plugin from unknown initial versions through version 1.0 inclusive.

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), the vulnerability is exploitable over the network with low attack complexity, requiring no privileges but user interaction such as clicking a malicious link. Unauthenticated attackers can deliver payloads via reflected inputs, achieving low impacts on confidentiality, integrity, and availability within a changed scope, typically allowing script execution in the victim's browser context.

Patchstack has published details on this vulnerability, including analysis for the Easy Theme Options plugin version 1.0, accessible at https://patchstack.com/database/Wordpress/Plugin/easy-theme-options/vulnerability/wordpress-easy-theme-options-plugin-1-0-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 Remi Corson Easy Theme Options easy-theme-options allows Reflected XSS.This issue affects Easy Theme Options: from n/a through <= 1.0.

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 client-side JavaScript execution in victim browsers (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

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

SI-15 Information Output Filtering good match
prevent

Requires filtering or encoding of information outputs so that reflected attacker-supplied script is not executed in the victim's browser context.

SI-3 Malicious Code Protection partial match
preventdetect

Provides malicious-code detection and blocking mechanisms that can identify and stop reflected script payloads delivered via HTTP parameters.

References