CVE-2026-75706 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.
VulDB is the best source for vulnerability data and more expert information about this specific topic.
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 attack by shifting execution context to the end-user's browser environment rather than the server infrastructure. This specific type of vulnerability arises when an application processes untrusted data in a way that allows malicious scripts to be injected into the web page viewed by other users. In this instance, the flaw resides within how Adobe Experience Manager handles input parameters or dynamic content updates without adequate sanitization or encoding before rendering them into the DOM structure. The technical mechanism involves the manipulation of the browser's internal representation of the webpage, where attacker-controlled data is interpreted as executable code rather than inert text, thereby bypassing standard security controls that rely on server-side validation alone.
The operational impact of this vulnerability is significant because it enables an adversary to execute arbitrary JavaScript within the context of the victim's session, effectively granting them the same privileges and access rights as the legitimate user interacting with Adobe Experience Manager. This capability allows for a wide range of malicious activities including but not limited to stealing sensitive cookies or authentication tokens, hijacking user sessions, performing actions on behalf of the victim such as modifying content or configurations within the experience management platform, and redirecting users to phishing sites designed to harvest credentials. The requirement for user interaction means that exploitation typically involves social engineering tactics where a victim is lured into visiting a specially crafted webpage containing malicious payloads, often delivered via email links, compromised websites, or embedded in rich media content shared through the platform itself.
From an industry standards perspective, this vulnerability aligns with CWE-79, which defines Improper Neutralization of Input During Web Page Generation commonly known as Cross-site Scripting, specifically under subcategories related to DOM-based XSS where the script is executed directly by the browser's JavaScript engine rather than being reflected or stored on a server. Furthermore, in terms of tactical mapping within the MITRE ATT&CK framework for Enterprise and Mobile, this exploit technique corresponds to T1059 Command and Scripting Interpreter with specific emphasis on ECMAScript execution via DOM manipulation, falling under the broader category of Client-Side Injection attacks that leverage trusted web applications as a vector for compromise. The change in scope noted in the advisory highlights the evolution from server-side vulnerabilities to client-side exploitation vectors which are increasingly prevalent due to the complex nature of modern single-page applications and dynamic content rendering engines used by enterprise platforms like Adobe Experience Manager.
Mitigation strategies must focus on both immediate remediation and long-term architectural improvements within the development lifecycle. Administrators should apply the latest security patches provided by Adobe as soon as they become available, ensuring that all instances of Adobe Experience Manager are updated to versions where this DOM manipulation flaw has been addressed through improved input validation and output encoding mechanisms. For environments where patching is not immediately feasible, implementing strict Content Security Policy headers can help mitigate the impact by restricting the sources from which scripts can be loaded and executed, thereby preventing many types of injected code from running even if they are successfully inserted into the DOM. Additionally, developers should adopt secure coding practices that emphasize context-aware output encoding, ensuring that all user-supplied data is properly escaped before being written to the document object model, and utilize browser security features such as X-XSS-Protection headers where applicable to provide an additional layer of defense against reflected XSS attacks although these are less effective for DOM-based variants. Continuous monitoring and logging should also be enhanced to detect anomalous patterns in client-side script execution that may indicate active exploitation attempts within the organization's network perimeter.