CVE-2025-31615

High

Published: 31 March 2025

Published

31 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 0.0040 61.4th percentile

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

Summary

CVE-2025-31615 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 38.6% 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-2025-31615 is an Improper Neutralization of Input During Web Page Generation vulnerability, classified as Stored Cross-site Scripting (XSS) under CWE-79, affecting the Simple Contact Forms WordPress plugin by owenr88. The issue impacts all versions of the plugin from n/a through 1.6.4 inclusive. Published on 2025-03-31, it 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).

Unauthenticated attackers can exploit this vulnerability remotely with low complexity by tricking authenticated users into interacting via a crafted request, such as through CSRF, to inject and store malicious scripts. Once stored, the XSS payload executes in the context of other site visitors or administrators viewing affected pages, enabling low-level impacts on confidentiality, integrity, and availability with a changed scope.

Patchstack documents this as a CSRF-to-Stored XSS vulnerability specifically in Simple Contact Forms version 1.6.4, providing details at https://patchstack.com/database/Wordpress/Plugin/simple-contact-forms/vulnerability/wordpress-simple-contact-forms-plugin-1-6-4-csrf-to-stored-xss-vulnerability?_s_id=cve.

EU & UK References

🇪🇺 ENISA EUVD: EUVD-2025-8787

Vulnerability details

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in owenr88 Simple Contact Forms simple-contact-forms allows Stored XSS.This issue affects Simple Contact Forms: from n/a through <= 1.6.4.

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?

Stored XSS in public-facing WordPress plugin directly enables remote exploitation of the web app (T1190) and attacker-controlled JavaScript execution in victim browsers (T1059.007).

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