Form Maker Plugin Stored XSS in Admin Submissions

The Form Maker by 10Web WordPress plugin before 1.15.51 does not consistently escape user-submitted field values before rendering them on its submissions admin page, allowing unauthenticated users to store a payload that executes as arbitrary web scripts in the session of an administrator who views the submissions.

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 Form Maker by 10Web WordPress plugin contains a stored cross-site scripting (XSS) vulnerability in its submissions admin page due to inconsistent escaping of user-submitted field values. This high-severity flaw (CVSS 7.5) allows unauthenticated attackers to inject malicious JavaScript payloads through form submissions that persist in the database. When administrators review these submissions, the unescaped payload executes in their browser session with full administrative privileges, enabling credential theft, malware installation, or complete site compromise. Any WordPress site using this plugin before version 1.15.51 is vulnerable, making this a critical threat to small business websites and content management systems that rely on contact forms and data collection.

Casky's 323 mapped security skills leverage Claude's extended reasoning to detect the attack patterns underlying this vulnerability across MITRE ATT&CK techniques TA0001 (Initial Access) and TA0043 (Reconnaissance). Practitioners using Casky would identify detection signals including: suspicious form field submissions containing script tags or event handlers, anomalous database entries with encoded JavaScript payloads, and browser-based activity deviations when administrators access the submissions page. Claude's reasoning engine correlates these indicators with CWE-79 (Improper Neutralization of Input During Web Page Generation) patterns, flagging the absence of proper output encoding and HTML entity escaping. Findings would highlight the attack chain from unauthenticated form submission through stored payload execution, enabling security teams to prioritize plugin updates and implement input validation controls before exploitation occurs.

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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-2026-105413.

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

Investigate the attack patterns behind CVE-2026-105413

Casky has 323 skills that investigate the attack patterns behind CVE-2026-105413. Run one and get CVSS-scored findings in 3 minutes.

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