Unauthenticated Access Control Bypass in Contact Form Plugin

Unauthenticated Broken Access Control in Post My CF7 Form <= 6.2.0 versions.

Casky was already ahead

This CVE exploits attack patterns that Casky's 283matched 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

CVE-2026-59534 represents a critical broken access control vulnerability in Post My CF7 Form plugin versions 6.2.0 and earlier, affecting WordPress sites that rely on this popular contact form solution. The vulnerability allows unauthenticated attackers to bypass authentication mechanisms entirely, gaining unauthorized access to sensitive form data and administrative functions. This poses significant risk to any organization using affected versions, as attackers can extract customer information, modify form configurations, or pivot to deeper system compromise without requiring valid credentials. The high CVSS score of 7.5 reflects the ease of exploitation and broad impact potential across thousands of WordPress deployments.

Casky's 283 mapped skills leverage Claude's extended reasoning to detect the attack patterns associated with this vulnerability across two critical MITRE ATT&CK tactics: TA0004 (Privilege Escalation) and TA0006 (Credential Access). Practitioners using Casky would identify suspicious patterns such as unauthenticated requests to form endpoints, unusual access to restricted administrative parameters, and data exfiltration attempts that bypass normal authentication workflows. The platform's Claude-powered analysis would correlate CWE-862 (Missing Authorization) indicators—such as direct object references without permission checks and parameter tampering in form submissions—with actual exploitation signatures. Security teams would receive findings highlighting unauthorized form access attempts, privilege escalation through authentication bypass, and credential exposure events, enabling them to prioritize remediation of vulnerable plugin versions and implement compensating controls like Web Application Firewalls that validate authentication on form processing endpoints.

Live Threat IntelligenceComing soon

Casky Risk Score

—

EPSS Probability

—

Shodan Exposure

—

GreyNoise Signal

—

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 →

283 Casky skills cover this attack pattern

These skills use Claude AI's reasoning model to surface findings in the same attack categories as CVE-2026-59534.

abusing-dpapi-for-credential-access

red teaming · high

Run

abusing-shadow-credentials-for-privesc

red teaming · high

Run

Access with Stolen Session Cookie

identity access management · low

Run

MITRE ATT&CK Techniques

TA0004 TA0006

Investigate the attack patterns behind CVE-2026-59534

Casky has 283 skills that investigate the attack patterns behind CVE-2026-59534. Run one and get CVSS-scored findings in 3 minutes.

Run the skill that detects this →

X Instagram LinkedIn