Cyber Resilience

CVE-2025-23603

High

Published: 22 January 2025

Published
22 January 2025
Modified
23 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 0.0035 57.6th percentile
Risk Priority 14 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2025-23603 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 in the top 42.4% of CVEs by exploit likelihood; 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-2025-23603 is an Improper Neutralization of Input During Web Page Generation vulnerability, classified as Reflected Cross-site Scripting (XSS) under CWE-79, in the Group Category Creator WordPress plugin by MohammadJafar Khajeh. The issue affects the plugin from unknown initial versions through 1.3.0.3.

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 following a malicious link. Any unauthenticated attacker can exploit it by crafting input that reflects malicious JavaScript payloads during web page generation, achieving arbitrary script execution in the victim's browser context with changed scope and low impacts on confidentiality, integrity, and availability.

The Patchstack advisory provides further details on this WordPress plugin vulnerability, accessible at https://patchstack.com/database/Wordpress/Plugin/group-category-creator/vulnerability/wordpress-group-category-creator-plugin-1-3-0-3-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 MohammadJafar Khajeh Group category creator group-category-creator allows Reflected XSS.This issue affects Group category creator: from n/a through <= 1.3.0.3.

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 public-facing applications (T1190) via crafted malicious links to achieve arbitrary JavaScript execution in the victim's 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-15 Information Output Filtering good match
prevent

Directly requires filtering and encoding of outputs during web page generation to neutralize reflected XSS payloads before execution in the victim's browser.

SI-10 Information Input Validation good match
prevent

Enforces validation of untrusted inputs to the WordPress plugin, rejecting or sanitizing malicious JavaScript payloads that could lead to reflected XSS.

SI-2 Flaw Remediation good match
prevent

Mandates timely identification, reporting, and correction of flaws like the improper neutralization vulnerability in the Group Category Creator plugin up to version 1.3.0.3.

References