Adobe Campaign Classic Incorrect Authorization RCE (CVE-2026-48449)

Technical Analysis

CVE-2026-48449 stems from improper authorization checks within Adobe Campaign Classic, enabling an attacker to bypass access controls and execute arbitrary code in the context of the current user. The vulnerability requires no user interaction and has a Scope Changed rating, indicating exploitation can affect resources beyond ACC's own security scope, likely including underlying application servers or connected databases. Given the CVSS score of 10.0, this suggests low attack complexity, network-based access, and no privileges required for exploitation. Organizations using ACC for marketing campaign orchestration that integrate with CRM, customer data platforms, or AI-driven personalization/recommendation agents should treat this as a critical priority, since a compromised ACC instance could leak customer PII, API keys, or credentials that downstream AI agents and RAG pipelines rely on for personalized content generation.

Affected Systems

Adobe Campaign Classic (ACC) - all deployments prior to the vendor-issued patch; specific version ranges should be confirmed via the official Adobe Security Bulletin (APSB) associated with this CVE.

Indicators of Compromise

• No specific IOCs published at this time; monitor Adobe Security Bulletin and threat intelligence feeds for indicators once exploitation is observed in the wild.

Remediation Steps

1. 1

   Apply vendor patch immediately

   Review the corresponding Adobe Security Bulletin (APSB) for CVE-2026-48449 and apply the patched version of Adobe Campaign Classic as soon as it is released or available.

2. 2

   Restrict network access to ACC instances

   Limit exposure of ACC management interfaces to trusted internal networks or VPN-only access until patching is complete.

3. 3

   Audit authorization configurations

   Review ACC access control lists, user roles, and authorization policies for anomalies or unauthorized changes.

4. 4

   Rotate credentials and API keys

   Rotate any API keys, service account credentials, or integration secrets used by ACC, especially those shared with downstream marketing automation, CRM, or AI agent/personalization systems.

5. 5

   Monitor for exploitation indicators

   Enable enhanced logging on ACC servers and monitor for unexpected code execution, unauthorized user context changes, or anomalous process activity.