CVE-2025-46840: Adobe Experience Manager Privilege Escalation

CVE-2025-46840 Overview

Adobe Experience Manager versions 6.5.22 and earlier are affected by an Improper Authorization vulnerability (CWE-285) that could result in privilege escalation. A low-privileged attacker could leverage this vulnerability to bypass security measures and gain unauthorized access to protected resources. Exploitation of this issue requires user interaction. A successful attacker can abuse this vulnerability to achieve session takeover, significantly increasing the confidentiality and integrity impact.

Critical Impact

This vulnerability allows attackers with low-level privileges to escalate their access and potentially take over user sessions, compromising both confidentiality and integrity of sensitive content managed by Adobe Experience Manager.

Affected Products

• Adobe Experience Manager versions 6.5.22 and earlier
• Adobe Experience Manager (On-Premise deployments)
• Adobe Experience Manager AEM Cloud Service

Discovery Timeline

• June 10, 2025 - CVE-2025-46840 published to NVD
• June 13, 2025 - Last updated in NVD database

Technical Details for CVE-2025-46840

Vulnerability Analysis

This vulnerability stems from improper authorization controls within Adobe Experience Manager. The flaw allows a low-privileged attacker to bypass intended security restrictions and access functionality or data that should be restricted to higher-privileged users. The attack requires user interaction, indicating that social engineering or crafted malicious content may be involved in the exploitation chain.

The vulnerability enables session takeover attacks, where an attacker can hijack an authenticated user's session to gain their access privileges. This is particularly dangerous in enterprise content management systems like AEM, where privileged users often have access to sensitive corporate assets, publishing workflows, and administrative functions.

Root Cause

The root cause is an Improper Authorization vulnerability (CWE-285) in Adobe Experience Manager's access control implementation. This weakness occurs when the application fails to properly verify that a user has the necessary permissions before granting access to protected resources or functionality. The authorization checks are either missing, incomplete, or can be bypassed through specific request patterns.

Attack Vector

The attack is network-based and requires the attacker to have low-level authenticated access to the Adobe Experience Manager platform. The exploitation flow involves:

1. The attacker authenticates with minimal privileges to the AEM instance
2. The attacker crafts specific requests designed to bypass authorization controls
3. User interaction is required for successful exploitation (such as clicking a malicious link)
4. Upon successful exploitation, the attacker can escalate privileges and perform session takeover

The vulnerability affects the authorization mechanism that controls access to protected functionality. Due to the improper validation of user permissions, requests from low-privileged users are incorrectly granted access to higher-privilege operations. See the Adobe Security Advisory APSB25-48 for complete technical details.

Detection Methods for CVE-2025-46840

Indicators of Compromise

• Unusual access patterns to administrative or restricted AEM endpoints from low-privileged user accounts
• Session tokens being used from multiple IP addresses or geographic locations simultaneously
• Unexpected privilege escalation events in AEM audit logs
• Authorization failures followed by successful access to the same resource

Detection Strategies

• Monitor AEM access logs for requests to administrative endpoints from non-administrative user sessions
• Implement behavioral analysis to detect users accessing resources outside their normal access patterns
• Configure alerting for session anomalies such as sudden privilege changes or session hijacking indicators
• Deploy web application firewall rules to detect and block suspicious authorization bypass attempts

Monitoring Recommendations

• Enable comprehensive audit logging for all authorization events in Adobe Experience Manager
• Monitor for failed authorization attempts that precede successful access to restricted resources
• Implement real-time alerting for session takeover indicators such as concurrent sessions from disparate locations
• Regularly review access control configurations and user privilege assignments

How to Mitigate CVE-2025-46840

Immediate Actions Required

• Apply the security patches referenced in Adobe Security Advisory APSB25-48 immediately
• Review and audit current user privileges to ensure least-privilege principles are enforced
• Enable additional authentication controls such as multi-factor authentication for privileged accounts
• Implement session management controls including session timeout and concurrent session limitations

Patch Information

Adobe has released security updates to address this vulnerability. Organizations using Adobe Experience Manager should apply the patches detailed in Adobe Security Advisory APSB25-48. The patch addresses the improper authorization controls and ensures proper privilege verification before granting access to protected resources.

Affected versions include Adobe Experience Manager 6.5.22 and earlier. Organizations should update to the latest patched version as specified in the Adobe security bulletin.

Workarounds

• Restrict network access to the AEM instance to trusted IP ranges only
• Implement additional authorization layer through reverse proxy or web application firewall
• Disable or restrict access to non-essential administrative features until patches can be applied
• Enforce strict session management policies including reduced session timeouts
• Monitor for and block suspicious user interaction patterns that may indicate exploitation attempts

Organizations should implement defense-in-depth controls including network segmentation, enhanced logging, and user awareness training to reduce the risk of exploitation while patching is being planned and executed.