CVE-2026-75711 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, commonly referred to as DOM XSS. This type of vulnerability arises when an application processes data from the user in an unsafe manner and writes it into the HTML document without proper validation or encoding. In this specific instance within Adobe Experience Manager, the underlying code fails to adequately sanitize input that is subsequently used by JavaScript functions to update the page content dynamically. The core technical flaw lies in the improper handling of dynamic DOM manipulation where untrusted data influences the execution context of scripts running in the victim's browser environment. This allows an attacker to inject malicious script payloads into web pages viewed by other users, effectively bypassing traditional server-side security controls that do not inspect client-side rendering logic.
The operational impact of this vulnerability is significant because it enables remote code execution within the scope of the user's session on Adobe Experience Manager. When a victim visits a crafted webpage containing the malicious payload, the browser interprets and executes the injected JavaScript as if it originated from the trusted domain hosting Adobe Experience Manager. This allows the attacker to hijack the victim’s active sessions by stealing sensitive cookies or authentication tokens, perform actions on behalf of the user such as modifying content or settings within the application, and potentially redirect the user to phishing sites designed to steal credentials further. The scope change noted in the vulnerability description indicates that the impact is confined primarily to client-side interactions rather than direct server compromise, yet it still poses a severe risk to data integrity and confidentiality for any authenticated users interacting with the affected system components.
Exploitation of this flaw requires user interaction, specifically necessitating that a victim visits a specially crafted webpage or clicks on a malicious link hosted by an attacker. This dependency on social engineering elements means that while automated exploitation is less likely compared to server-side vulnerabilities, targeted attacks remain highly effective against employees or administrators who may inadvertently access compromised links through email or other communication channels. The attack vector aligns with the MITRE ATT&CK framework technique for Cross-Site Scripting via DOM objects, which falls under the broader category of Client-Side Injection. From a classification standpoint, this vulnerability corresponds to CWE-79 Improper Neutralization of Input During Web Page Generation in standard security taxonomy frameworks like Common Weakness Enumeration.
To mitigate this risk, immediate action should be taken by applying the latest patches and updates provided by Adobe for Adobe Experience Manager versions affected by this issue. Administrators must ensure that all instances are upgraded to a version where the DOM manipulation logic has been hardened with proper input validation and output encoding mechanisms. Additionally, implementing strict Content Security Policy headers can significantly reduce the impact of successful XSS attacks by restricting the sources from which scripts can be loaded and executed within the browser environment. Organizations should also conduct regular security audits focusing on client-side code review to identify similar patterns where dynamic data is injected into the DOM without adequate sanitization. User awareness training regarding phishing tactics remains essential as a secondary defense layer since exploitation relies heavily on user interaction with malicious content.