DedeCMS <=5.7.118 Remote Code Injection via mytag_js.php aid param
CVE-2026-94004 Published on September 20, 2026
DedeCMS mytag_js.php code injection
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.
Timeline
Advisory disclosed
VulDB entry created
VulDB entry last update
Weakness Types
What is a Code Injection Vulnerability?
The software constructs all or part of a code segment using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the syntax or behavior of the intended code segment.
CVE-2026-94004 has been classified to as a Code Injection vulnerability or weakness.
What is an Injection Vulnerability?
The software constructs all or part of a command, data structure, or record using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify how it is parsed or interpreted when it is sent to a downstream component. Software has certain assumptions about what constitutes data and control respectively. It is the lack of verification of these assumptions for user-controlled input that leads to injection problems. Injection problems encompass a wide variety of issues -- all mitigated in very different ways and usually attempted in order to alter the control flow of the process. For this reason, the most effective way to discuss these weaknesses is to note the distinct features which classify them as injection weaknesses. The most important issue to note is that all injection problems share one thing in common -- i.e., they allow for the injection of control plane data into the user-controlled data plane. This means that the execution of the process may be altered by sending code in through legitimate data channels, using no other mechanism. While buffer overflows, and many other flaws, involve the use of some further issue to gain execution, injection problems need only for the data to be parsed. The most classic instantiations of this category of weakness are SQL injection and format string vulnerabilities.
CVE-2026-94004 has been classified to as an Injection vulnerability or weakness.
Products Associated with CVE-2026-94004
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