CVE-2026-82004 in Campaign Classic
Summary
by MITRE • 09/08/2026
Adobe Campaign Classic (ACC) is affected by an Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') vulnerability that could result in arbitrary code execution in the context of the current user. An attacker could exploit this vulnerability to execute arbitrary code. Exploitation of this issue does not require user interaction. Scope is changed.
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Analysis
by VulDB Data Team • 09/08/2026
Adobe Campaign Classic contains a critical OS command injection vulnerability classified under CWE-78, which stems from improper neutralization of special elements used in operating system commands. This flaw allows an attacker to inject and execute arbitrary operating system-level commands within the context of the user account running the Adobe Campaign application service. The root cause typically involves insufficient validation or sanitization of input data that is subsequently passed directly to underlying shell interpreters without proper escaping of metacharacters such as semicolons, pipes, or ampersands. This lack of rigorous input handling creates a direct pathway for malicious actors to bypass intended security controls and manipulate the execution flow of system-level processes associated with the application.
The operational impact of this vulnerability is severe due to its potential for arbitrary code execution without requiring any user interaction. Because exploitation does not depend on social engineering or victim participation, automated scanning tools can rapidly identify vulnerable instances across a network infrastructure. Once exploited, an attacker gains the ability to execute commands at the privilege level assigned to the Adobe Campaign service account. Depending on system configuration and hardening practices, this may translate into full control over the underlying operating system, enabling data exfiltration, lateral movement within the internal network, or complete compromise of sensitive business intelligence stored within the campaign management platform. The change in scope indicates that the vulnerability affects broader components than previously assessed, increasing the attack surface significantly for organizations relying on Adobe Campaign Classic for marketing automation and customer engagement workflows.
From a threat modeling perspective aligned with MITRE ATT&CK frameworks, this vulnerability facilitates initial access and privilege escalation techniques often categorized under Command and Scripting Interpreter abuse or System Network Configuration Discovery if used to probe internal networks post-exploitation. Attackers can leverage the injected commands to download additional payloads, establish persistent backdoors, or pivot to other critical systems that share credentials or network trust relationships with the compromised server. The absence of required user interaction further exacerbates the risk profile, as traditional defense-in-depth strategies relying on human vigilance are rendered ineffective against automated exploitation attempts targeting this specific input vector.
Mitigation requires immediate application of vendor-provided patches and updates to bring Adobe Campaign Classic to a secure version that addresses these command injection flaws. In environments where patching is not immediately feasible, administrators should implement strict network segmentation to isolate the campaign servers from untrusted networks and restrict outbound connections to only necessary endpoints. Additionally, enforcing least-privilege principles for the service account running the application can limit the blast radius of a successful exploitation attempt by ensuring that even if arbitrary code execution occurs, the attacker cannot easily escalate privileges or access sensitive system resources outside the designated scope. Input validation should also be reinforced at the application layer to ensure all external inputs are strictly validated against expected formats before being processed by any backend command interpreters.