CVE-2026-75724 in Experience Manager as a Cloud Service
Summary
by MITRE • 09/09/2026
Adobe Experience Manager is affected by a DOM-based Cross-Site Scripting (XSS) vulnerability. An attacker could exploit this issue by manipulating the DOM environment to execute malicious JavaScript within the context of the victim's browser. Exploitation of this issue requires user interaction in that a victim must visit a crafted webpage. Scope is changed.
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Analysis
by VulDB Data Team • 09/09/2026
Adobe Experience Manager contains a critical client-side security flaw classified as a Document Object Model-based Cross-Site Scripting vulnerability, which fundamentally alters the traditional scope of exploitation by shifting focus from server-side injection to browser environment manipulation. This specific type of XSS occurs when an application processes user-supplied data in a way that allows malicious scripts to be injected into the DOM tree without proper sanitization or encoding. Unlike reflected or stored XSS variants that often require direct interaction with the vulnerable web page's input fields, this vulnerability leverages the dynamic nature of modern JavaScript frameworks and browser APIs to execute code based on how the application handles data within the client-side environment itself. The presence of such a flaw indicates insufficient validation mechanisms for data sources that influence DOM properties or attributes, allowing an attacker to inject executable content directly into the page structure during runtime.
The technical mechanism behind this vulnerability involves the manipulation of the browser's internal representation of the web page, enabling the execution of arbitrary JavaScript code within the security context of the target domain. When a victim visits a crafted webpage designed by an adversary, the malicious script interacts with Adobe Experience Manager components or associated third-party libraries to trigger unintended behavior. Because the scope is changed and exploitation relies on user interaction, the attack vector typically involves social engineering tactics where the victim is lured into accessing a specially constructed URL or page that contains payload code capable of exploiting the DOM parsing logic. Once executed, this malicious JavaScript operates with the same privileges as legitimate scripts loaded from Adobe Experience Manager, granting it access to sensitive cookies, session tokens, local storage data, and potentially the ability to perform actions on behalf of the authenticated user without their knowledge.
From an operational impact perspective, successful exploitation can lead to severe consequences including account hijacking, unauthorized administrative actions within the content management system, defacement of web pages, or redirection to malicious sites that distribute further malware. The change in scope implies that traditional server-side security controls may be insufficient if they do not adequately address client-side data handling practices. Attackers can use this vulnerability to bypass authentication mechanisms by stealing session identifiers, thereby gaining persistent access to the application infrastructure. In enterprise environments running Adobe Experience Manager, such compromises can result in significant reputational damage, loss of customer trust, and potential regulatory penalties due to unauthorized access to personal or proprietary information stored within the platform.
To mitigate these risks, organizations must implement robust Content Security Policy directives that restrict the sources from which scripts can be loaded and executed, effectively neutralizing many DOM-based XSS attacks by preventing inline script execution unless explicitly allowed through strict nonce or hash mechanisms. Developers should ensure that all user-supplied data is properly encoded before being written to the DOM using methods like textContent rather than innerHTML when appropriate, thereby treating input as plain text instead of executable code. Additionally, employing modern JavaScript frameworks with built-in escaping features and conducting regular security audits focused on client-side logic can significantly reduce exposure. Security teams should also monitor for unusual browser behavior indicative of script injection and keep Adobe Experience Manager updated to the latest version where such vulnerabilities have been patched by addressing the underlying DOM manipulation flaws at their source.