CVE-2026-105895 in Experience Manager
Summary
by MITRE • 10/13/2026
Adobe Experience Manager is affected by an Improper Input Validation vulnerability that could result in arbitrary code execution in the context of the current user, potentially gaining elevated access or control over the victim's account or session. Exploitation of this issue does not require user interaction. Scope is changed.
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Analysis
by VulDB Data Team • 10/13/2026
Adobe Experience Manager contains a critical security flaw classified as an Improper Input Validation vulnerability within its core processing logic. This defect allows attackers to inject malicious data that bypasses expected validation checks, leading directly to arbitrary code execution in the context of the currently logged-in user. The root cause lies in the application's failure to adequately sanitize or validate specific input vectors before they are processed by backend services. By exploiting this weakness, an attacker can manipulate internal variables and function calls, effectively taking control of the server-side environment under the privileges of the active session. This represents a significant deviation from secure coding practices where all external inputs must be rigorously checked against defined constraints to prevent unintended execution paths.
The operational impact of this vulnerability is severe due to its non-interactive nature. Exploitation does not require any action from a legitimate user, such as clicking a link or opening an attachment, which significantly lowers the barrier for entry and increases the likelihood of successful compromise in automated attack scenarios. Once executed, the arbitrary code execution grants the attacker elevated access capabilities within the system. This can lead to full control over the victim's account or session, allowing for unauthorized data exfiltration, modification of critical content, or further lateral movement within the network infrastructure. The change in scope indicates that this vulnerability affects a broader range of components than previously assessed, expanding the potential attack surface and increasing the risk profile for organizations relying on Adobe Experience Manager for digital asset management and web content delivery.
From a classification perspective, this issue aligns with CWE-20 Improper Input Validation and often facilitates CWE-78 OS Command Injection or CWE-94 Server-Side Code Injection depending on the specific implementation details of the affected module. In terms of adversary tactics, exploitation maps to MITRE ATT&CK techniques such as T1190 Exploit Public-Facing Application and potentially T1059 Command and Scripting Interpreter if the executed code involves scripting languages native to the server environment. The ability to execute arbitrary commands without user interaction places this vulnerability in a high-severity category, requiring immediate attention from security operations teams.
Mitigation strategies must focus on both technical remediation and operational hardening. Adobe has released patches addressing these specific input validation failures; organizations should prioritize applying the latest service packs or hotfixes as soon as they are verified for compatibility with their existing environment. In addition to patching, it is advisable to implement network-level controls such as Web Application Firewalls configured to detect and block anomalous request patterns associated with injection attacks. Restricting access to administrative interfaces through IP whitelisting and enforcing multi-factor authentication can further reduce the risk of exploitation by limiting exposure to untrusted networks. Regular vulnerability scanning and penetration testing should be conducted to identify any residual weaknesses or misconfigurations that could allow attackers to bypass these controls.