CVE-2025-25142

High

Published: 03 March 2025

Published

03 March 2025

Modified

23 April 2026

KEV Added

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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 0.0023 46.2th percentile

Risk Priority 14 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2025-25142 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 46.2th 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-2025-25142 is an Improper Neutralization of Input During Web Page Generation vulnerability, enabling Stored Cross-site Scripting (XSS) as classified under CWE-79, in the WP Less Compiler plugin (wp-less-compiler) developed by The Jake Group for WordPress. This issue affects all versions of the plugin from its initial release through 1.3.0 inclusive. The vulnerability was published on 2025-03-03 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).

Unauthenticated attackers with network access can exploit this vulnerability by submitting malicious input that gets stored and reflected in generated web pages, though it requires user interaction such as a victim viewing the affected page. Exploitation changes scope and allows limited impacts on confidentiality, integrity, and availability, potentially enabling script execution in the victim's browser context to steal session data or perform other actions within the site's permissions.

The Patchstack advisory provides details on this vulnerability, including recommendations for mitigation, accessible at https://patchstack.com/database/Wordpress/Plugin/wp-less-compiler/vulnerability/wordpress-wp-less-compiler-plugin-1-3-0-cross-site-scripting-xss-vulnerability?_s_id=cve.

EU & UK References

🇪🇺 ENISA EUVD: EUVD-2025-5646

Vulnerability details

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in The Jake Group WP Less Compiler wp-less-compiler allows Stored XSS.This issue affects WP Less Compiler: from n/a through <= 1.3.0.

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 →

T1189 Drive-by Compromise Initial Access

Adversaries may gain access to a system through a user visiting a website over the normal course of browsing.

attack.mitre.org →

T1185 Browser Session Hijacking Collection

Adversaries may take advantage of security vulnerabilities and inherent functionality in browser software to change content, modify user-behaviors, and intercept information as part of various browser session hijacking techniques.

attack.mitre.org →

Why these techniques?

Stored XSS in public-facing WordPress plugin directly enables remote exploitation of the web app (T1190), facilitates drive-by compromise via malicious page content (T1189), and supports browser session hijacking through script execution to steal session data (T1185).

Confidence: HIGH · MITRE ATT&CK Enterprise v19.0