Cyber Resilience

CVE-2025-23643

High

Published: 22 January 2025

Published
22 January 2025
Modified
23 April 2026
KEV Added
—
Patch
—
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 0.0011 29.3th percentile
Risk Priority 14 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2025-23643 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 29.3th 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-2025-23643 is an Improper Neutralization of Input During Web Page Generation vulnerability, classified as Reflected Cross-site Scripting (XSS) under CWE-79, in the ReadMe Creator WordPress plugin by a.ankit. The issue affects all versions of the plugin from n/a through 1.0 inclusive, as published on 2025-01-22.

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 exploitation is possible over the network with low attack complexity, no required privileges, but user interaction such as visiting a malicious link. Remote attackers can leverage reflected XSS to inject and execute arbitrary scripts in users' browsers, achieving low impacts on confidentiality, integrity, and availability within a changed security scope.

Patchstack advisory at https://patchstack.com/database/Wordpress/Plugin/readme-creator/vulnerability/wordpress-readme-creator-plugin-1-0-reflected-cross-site-scripting-xss-vulnerability?_s_id=cve provides details on the vulnerability in the WordPress ReadMe Creator plugin version 1.0.

EU & UK References

Vulnerability details

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in a.ankit ReadMe Creator readme-creator allows Reflected XSS.This issue affects ReadMe Creator: 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) to inject and execute arbitrary JavaScript in the victim's browser (T1059.007) via crafted malicious links.

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

SI-15 directly addresses reflected XSS by requiring filtering and encoding of information prior to output in web page generation, preventing arbitrary script execution in users' browsers.

SI-10 Information Input Validation good match
prevent

SI-10 mitigates the vulnerability by enforcing validation of untrusted inputs to block malicious XSS payloads before they are processed by the ReadMe Creator plugin.

SI-2 Flaw Remediation good match
prevent

SI-2 ensures timely identification, reporting, and patching of the specific flaw in ReadMe Creator versions <=1.0, eliminating the root cause of the improper neutralization.

References