Stored XSS in Contact Form Email Plugin Threatens Data

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Codepeople Contact Form Email contact-form-to-email allows Stored XSS.This issue affects Contact Form Email: from n/a through 1.3.68.

Casky was already ahead

This CVE exploits attack patterns that Casky's 323matched skills already investigate — long before this vulnerability was disclosed. Claude's reasoning model maps these techniques to MITRE ATT&CK, so practitioners who ran these skills have already seen the threat behaviour in their findings.

Analysis

The Codepeople Contact Form Email plugin (versions through 1.3.68) contains a Stored Cross-Site Scripting (XSS) vulnerability that allows attackers to inject malicious scripts into web pages permanently. When user input is improperly neutralized during web page generation, attackers can embed JavaScript code in form submissions that executes whenever the page is viewed—affecting not just the attacker but all site visitors, including administrators. This is particularly dangerous for WordPress sites using this popular contact form plugin, as attackers can harvest credentials, steal session tokens, redirect users to phishing pages, or deploy malware without requiring active exploitation for each victim.

Casky's 323 mapped skills detect this vulnerability pattern by analyzing input validation gaps and output encoding failures across MITRE ATT&CK techniques TA0001 (Initial Access) and TA0043 (Reconnaissance). Practitioners using Casky would see findings highlighting: (1) insufficient input sanitization on form fields that accept user data without filtering dangerous characters like script tags, (2) missing output encoding when form submissions are displayed in admin dashboards or frontend pages, and (3) stored payload persistence enabling lateral attack propagation. Claude's extended reasoning identifies the attack chain—an attacker submitting `<script>alert('xss')</script>` in a contact form field, which then executes in the browser context of anyone viewing that submission—and maps this to adversary techniques for credential theft and social engineering attacks.

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Casky Risk Score

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EPSS Probability

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Shodan Exposure

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GreyNoise Signal

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Composite risk scoring from EPSS, CISA KEV, Shodan, and GreyNoise — 21 security APIs correlated into a single Casky Risk Score. Coming in Casky Pro. Join early access →

323 Casky skills cover this attack pattern

These skills use Claude AI's reasoning model to surface findings in the same attack categories as CVE-2026-112379.

Abuse of Public-Facing API: Mobile API Abuse

mobile security · low

Run

abusing-dpapi-for-credential-access

red teaming · high

Run

abusing-shadow-credentials-for-privesc

red teaming · high

Run

MITRE ATT&CK Techniques

TA0001 TA0043

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