External risk intelligence

Adobe Campaign Classic Incorrect Authorization Vulnerability Allows Code Execution

CVE advisorySeverity: CRITICAL (CVSS 9.9)

CVE-2026-105780

Adobe Campaign Classic is an enterprise marketing automation platform designed to manage and deliver public-facing campaigns, web forms, and email communications. Due to its role in interacting with external customers and managing digital marketing assets, it is commonly deployed as an internet-facing or edge-accessible service to facilitate these functions.

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 a limited attacker to execute unauthorized code. This vulnerability poses a significant risk because it could enable malicious actors to run arbitrary commands on the system, potentially leading to broader system compromise. The main concern is confirming relevance and exposure.

  • Authorization flaw allows unauthorized code execution.
  • Critical systems could be compromised by attackers.
  • Confirm relevance and understand potential exposure.

Attack Path

How an attacker could exploit the issue

An attacker with limited privileges could exploit this vulnerability by targeting Adobe Campaign Classic. By leveraging the incorrect authorization flaw, the attacker could execute arbitrary code on the system, potentially leading to a compromise of the current user's context. This attack does not require any interaction from the user.

  • Low-privileged access is required.
  • The vulnerability is triggered by an incorrect authorization flaw.
  • Risk includes arbitrary code execution.

Live Threat

Current exploitation, exposure, and threat context

This vulnerability in Adobe Campaign Classic could allow a low-privileged attacker to execute arbitrary code on a system. This could occur when the affected system is accessible via a network and when the attacker can interact with the service without needing user consent or privileges. The potential impact involves unauthorized code execution, which could compromise the affected system or lead to data manipulation.

  • Arbitrary code execution on affected systems.
  • Exploited when the service is network-accessible.
  • Compromise of system or data integrity.

Operational Fix

Recommended remediation, mitigation, and detection steps

Security and infrastructure teams are most likely responsible for addressing this critical authorization vulnerability in Adobe Campaign Classic. The first practical step is to confirm the deployment scope and business criticality of ACC instances, identify the accountable system owners, and then initiate a coordinated remediation plan based on the assessed risk.

  • Identify ACC asset owners.
  • Verify external reachability and criticality.
  • Plan coordinated remediation and vendor engagement.

Supplementary metadata

Validate whether this threat affects your internet-facing exposure.

Halo Threat Intelligence helps prioritize remediation with Halo Surface Signal and H/A/L/O context. Start exposure validation with a free external attack surface trial.

Frequently asked questions

What is Adobe Campaign Classic?

Adobe Campaign Classic is an enterprise marketing automation platform. Organizations use it to manage and deliver multi-channel campaigns, including email communications, web forms, and public-facing marketing assets. It typically functions as a central hub for coordinating customer interactions and digital marketing content across an organization.

What does Incorrect Authorization mean for CVE-2026-105780?

This vulnerability is classified as CWE-863, which means the software does not properly verify that a user has permission to perform a specific action. In the context of CVE-2026-105780, it allows a low-privileged attacker to bypass these security checks and execute unauthorized code on the system, effectively acting with the permissions of the current user.

How is this vulnerability triggered?

An attacker triggers this flaw by sending specifically crafted network requests to the Adobe Campaign Classic service. Crucially, the attack does not require any user interaction to succeed. It is important to note that this is an authorization issue, so simply having an account on the platform, even with minimal privileges, is the primary precondition for an attacker to attempt exploitation.

Is my Adobe Campaign Classic instance at risk?

Halo Surface Signal indicates that Adobe Campaign Classic is often deployed as an internet-facing or edge-accessible service to support public-facing campaigns and communications. If your instance is reachable via the network or hosts external-facing marketing assets, it has a higher potential for visibility to attackers, making it a priority for review.

What should I do to respond to this vulnerability?

Begin by identifying all Adobe Campaign Classic instances within your environment and determining their network accessibility. Consult the official vendor security bulletin for available updates. Coordinate with system owners to prioritize patching for instances that are exposed to external networks or carry significant business criticality.

References