CVE-2026-77109 in Commerce
Summary
by MITRE • 09/09/2026
Adobe Commerce is affected by an Incorrect Authorization vulnerability that could result in privilege escalation. An attacker could leverage this vulnerability to gain elevated access to restricted resources. Exploitation of this issue does not require user interaction. Scope is changed.
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Analysis
by VulDB Data Team • 09/09/2026
The identified security flaw within Adobe Commerce represents a critical failure in the application's access control mechanisms, specifically categorized as an Incorrect Authorization or Broken Access Control vulnerability. This type of defect typically arises when the software fails to properly verify that a requesting entity has the necessary permissions to perform a specific action on a given resource. In this instance, the architectural oversight allows for privilege escalation, meaning that users with lower-level privileges can manipulate requests to execute functions reserved for administrators or other high-privilege roles. The core technical issue lies in the server-side logic failing to enforce strict separation between different user tiers, likely due to insufficient validation of session tokens, role identifiers, or resource ownership during API calls or administrative interface interactions.
From an operational perspective, this vulnerability poses a severe risk to the integrity and confidentiality of the e-commerce platform. Because exploitation does not require user interaction, such as clicking a malicious link or opening a crafted email, the attack vector is significantly more dangerous and scalable. An attacker can automate the discovery and exploitation process against any authenticated user account with minimal privileges, potentially escalating their access without detection by end-users who might otherwise notice suspicious activity triggered by social engineering tactics. Once elevated permissions are obtained, an adversary could modify product listings, alter pricing structures, steal customer payment data, inject malicious code into storefronts, or completely compromise the underlying server infrastructure if further lateral movement is possible.
This vulnerability aligns with CWE-269, which describes Improper Privilege Management, and falls under the broader category of CWE-862, Missing Authorization. In terms of offensive security frameworks, this behavior maps directly to MITRE ATT&CK technique T1078, Valid Accounts, specifically within the context of privilege escalation where an attacker leverages legitimate credentials but abuses system misconfigurations or logic flaws to gain higher-level access. The change in scope indicates that the impact extends beyond a single user session, potentially affecting the entire application environment and associated data stores if administrative controls are bypassed effectively.
Mitigation strategies must focus on implementing robust identity and access management protocols. Developers should enforce principle of least privilege by ensuring that every API endpoint and administrative function explicitly checks for required roles before processing requests. Input validation alone is insufficient; server-side authorization checks must be performed consistently across all entry points, including internal APIs used by the frontend interface. Additionally, adopting a defense-in-depth approach involves logging access control failures to detect potential exploitation attempts in real-time. Regular security audits and penetration testing focused on broken object level authorization (BOLA) patterns are essential to identify similar flaws before they can be exploited in production environments. Keeping Adobe Commerce updated with the latest patches provided by the vendor is also critical, as these updates often include fixes for such logic-based vulnerabilities that static code analysis might miss.