Cyber Resilience

CVE-2025-23583

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-2025-23583 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-15 (Information Output Filtering) and SI-2 (Flaw Remediation).

Deeper analysis

CVE-2025-23583 is an Improper Neutralization of Input During Web Page Generation vulnerability, classified as Reflected Cross-site Scripting (XSS) under CWE-79, in the Explara Membership WordPress plugin (explara-membership). This issue affects all versions from n/a through 0.0.7, allowing attackers to inject malicious scripts via unsanitized user input reflected in web page generation.

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 malicious link. Remote attackers can exploit it by crafting inputs that execute arbitrary JavaScript in the victim's browser, achieving low impacts on confidentiality, integrity, and availability with a changed scope that may affect other users or components.

Patchstack's advisory documents this WordPress plugin vulnerability and provides related details at https://patchstack.com/database/Wordpress/Plugin/explara-membership/vulnerability/wordpress-explara-membership-plugin-0-0-7-reflected-cross-site-scripting-xss-vulnerability?_s_id=cve, where practitioners can find guidance on updates or mitigations.

EU & UK References

Vulnerability details

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Explara Explara Membership explara-membership allows Reflected XSS.This issue affects Explara Membership: from n/a through <= 0.0.7.

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?

The reflected XSS in the public-facing WordPress plugin directly enables exploitation of the web application (T1190) to execute arbitrary JavaScript in the victim's browser (T1059.007) via crafted inputs/links.

Confidence: MEDIUM · 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 prevents reflected XSS by requiring the system to filter information prior to output to web pages, addressing improper neutralization during web page generation.

SI-10 Information Input Validation partial match
prevent

Validates and sanitizes user inputs to block malicious scripts from being accepted and reflected in web pages.

SI-2 Flaw Remediation good match
prevent

Requires identification, reporting, and correction of flaws like this XSS vulnerability in the Explara Membership plugin through patching.

References