DedeCMS Code Injection via Parameter Manipulation

A vulnerability was found in DedeCMS up to 5.7.118. The affected element is an unknown function of the file plus/mytag_js.php. The manipulation of the argument aid results in code injection. The attack can be launched remotely. The exploit has been made public and could be used.

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

DedeCMS versions up to 5.7.118 contain a critical code injection vulnerability in the plus/mytag_js.php file where the 'aid' parameter is inadequately sanitized. This allows remote attackers to inject and execute arbitrary code without authentication, achieving complete system compromise. Organizations running DedeCMS for content management, particularly smaller businesses and community sites that may lack dedicated security teams, face immediate risk. With a CVSS score of 7.3 and public exploits already available, this vulnerability presents an active threat surface that could enable attackers to steal data, modify content, or pivot to internal systems.

Casky's 754 mapped security skills enable detection of the exploitation patterns mapped to MITRE ATT&CK techniques TA0001 (Initial Access) and TA0043 (Reconnaissance). Practitioners using Casky would identify suspicious patterns including: malformed or encoded 'aid' parameter submissions to plus/mytag_js.php that deviate from normal request baselines, execution of unexpected code flows triggered by CWE-74 (Improper Neutralization of Special Elements) and CWE-94 (Code Injection) attack chains, and behavioral anomalies indicating code execution post-injection. Claude's extended reasoning capability correlates these technical indicators across multiple attack stages, allowing security teams to distinguish between legitimate traffic and sophisticated exploitation attempts, while the skills framework provides context-aware detection rules that practitioners can immediately operationalize in their environments.

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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-2026-94004.

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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Casky has 323 skills that investigate the attack patterns behind CVE-2026-94004. Run one and get CVSS-scored findings in 3 minutes.

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