External risk intelligence

Adobe Campaign Classic Incorrect Authorization Vulnerability Allows Code Execution.

CVE advisorySeverity: CRITICAL (CVSS 10.0)

CVE-2026-48449

Adobe Campaign Classic is an enterprise marketing and campaign management platform frequently deployed as a web-accessible application or service to manage customer data and marketing workflows, making it commonly reachable via the network in standard operational environments.

Halo Surface Signal: 4 out of 5 — likely to be public-facing.

External exposure likelihood

Horizon Alert

Summary of the vulnerability and why it matters

Adobe Campaign Classic is impacted by an authorization flaw that could allow unauthorized code execution without user interaction. The main concern is confirming if our Adobe Campaign Classic instances are relevant and exposed to this vulnerability.

Authorization flaw risks code execution.
Potential for unauthorized actions.
Confirm relevance and exposure.

Attack Path

How an attacker could exploit the issue

An attacker could reach the Adobe Campaign Classic application over the network without needing any special access or credentials. By exploiting an incorrect authorization flaw, they could potentially execute arbitrary code, taking on the permissions of the user running the application. This vulnerability could lead to a complete compromise of the affected system in the context of the current user.

Network access is required.
Flaw in authorization controls.
Arbitrary code execution possible.

Live Threat

Current exploitation, exposure, and threat context

When supported by the advisory, this vulnerability in Adobe Campaign Classic could lead to arbitrary code execution within the context of the current user, potentially impacting system data and service behavior. Exploitation does not require user interaction and can occur over the network.

System data and service behavior.
Exploited via network, no user interaction.
Arbitrary code execution.

Operational Fix

Recommended remediation, mitigation, and detection steps

Security teams and infrastructure owners are responsible for addressing this critical vulnerability in Adobe Campaign Classic. The immediate priority is to identify all instances of the affected technology, confirm their network reachability and business criticality, and then assign ownership for remediation planning based on the assessed risk.

Ownership: Infrastructure and security teams.
Verify: Affected system reachability and criticality.
Action: Plan remediation based on risk.

Supplementary metadata

CVSS vector

Validate whether this threat affects your internet-facing exposure.

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Frequently asked questions

What is Adobe Campaign Classic?

Adobe Campaign Classic is an enterprise-grade platform designed for managing marketing campaigns, customer databases, and complex communication workflows. It acts as a centralized hub where organizations orchestrate data-driven interactions across various digital channels. Because it integrates deeply with customer information and backend services, it is typically deployed as a web-accessible application within a company's network infrastructure.

What does Incorrect Authorization mean for CVE-2026-48449?

This vulnerability is classified as CWE-863, which occurs when an application fails to properly verify if a user has permission to perform a specific action. In the context of this CVE, it means the software does not correctly enforce security boundaries. Because of this flaw, an unauthorized party can bypass intended access controls to run arbitrary commands, essentially tricking the system into performing actions that only a legitimate, authorized user should be able to trigger.

How is this vulnerability triggered?

An attacker triggers this flaw by sending specifically crafted network requests to the Adobe Campaign Classic application. The vulnerability does not require the attacker to have existing credentials, nor does it require any interaction from a legitimate user. It is important to note that simply accessing the application for normal marketing tasks does not trigger the bug; the system must be targeted with malicious input designed to exploit the missing authorization checks.

Is my Adobe Campaign Classic instance at risk?

According to Halo Surface Signal, this software is frequently deployed as a web-accessible service, making it highly likely to be reachable over the network. If your instance is connected to the internet or accessible from untrusted network segments, it faces a higher level of risk. Organizations should prioritize assessing whether their specific implementation is exposed to external network traffic, as this connectivity increases the opportunity for unauthorized access.

What should I do first to address this CVE?

The first step is to locate all instances of Adobe Campaign Classic within your environment. Once identified, confirm the network reachability of these systems to determine if they are exposed to external or untrusted internal traffic. After cataloging these assets, involve the appropriate infrastructure and security teams to review the official Adobe security guidance provided in the advisory and plan the necessary remediation steps to secure your deployment.

References

helpx.adobe.com/security/products/campaign/apsb26-114.html

Written by Nicholas Merritt

Nicholas Merritt is VP of Security Solutions at Halo Security. With more than 25 years across application security, vulnerability prioritization, and offensive security, he helps teams translate threat data into practical exposure validation and remediation focus. He authors Halo Threat Intelligence CVE advisories using Halo Surface Signal and H/A/L/O context to prioritize internet-facing risk.