CVE-2026-75705 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 client-side vulnerability classified as a Document Object Model based Cross-Site Scripting flaw, which allows an attacker to inject and execute malicious JavaScript code within the context of a victim's web browser. This type of vulnerability arises when an application processes user-supplied input without adequate validation or sanitization before writing it back into the DOM structure that is subsequently rendered by the browser engine. In this specific instance, the flaw resides in how Adobe Experience Manager handles certain inputs on its client-side interface, creating a pathway where untrusted data influences the execution environment of active scripts running within the user's session context.
The technical mechanism behind this exploitation involves an attacker crafting a malicious webpage or link that contains specially constructed input designed to trigger the vulnerability when accessed by a victim using Adobe Experience Manager. When the victim interacts with the crafted content, typically through clicking a link or visiting a specific URL, the browser parses the injected script and executes it as if it were part of the legitimate application code. Because the execution occurs within the same origin context as the vulnerable web application, the malicious script inherits all the privileges associated with that site, including access to cookies, session tokens, local storage data, and potentially sensitive user information displayed on the page.
This vulnerability is categorized under CWE-79, which defines Improper Neutralization of Input During Web Page Generation commonly known as Cross-site Scripting. The specific variant here aligns with DOM-based XSS where the injection point is in client-side JavaScript rather than server-generated HTML, making it particularly difficult to detect using traditional server-side web application scanners. From a threat actor perspective, this technique maps directly to MITRE ATT&CK techniques involving Client-Side Injection and potentially Credential Access if session hijacking is achieved. The scope of impact has been noted as changed in recent assessments, indicating that the potential for broader exploitation or higher severity outcomes may have evolved compared to previous evaluations, possibly due to changes in how Adobe Experience Manager processes specific DOM nodes or handles event listeners associated with user input fields.
The operational impact of successfully exploiting this vulnerability can be severe depending on the privileges held by the victim and the sensitivity of the data accessible within that session. An attacker could perform actions such as stealing authentication credentials, hijacking active sessions to impersonate legitimate users, defacing web pages, or redirecting victims to phishing sites designed to harvest additional sensitive information. In enterprise environments where Adobe Experience Manager is used for managing digital content and customer interactions, compromising user accounts can lead to unauthorized modification of published content, reputational damage, and potential regulatory compliance violations if personal data is exfiltrated.
Mitigation strategies should focus on both immediate remediation and long-term defensive coding practices. The primary solution involves applying the latest security patches provided by Adobe for Adobe Experience Manager, as these updates typically include fixes that sanitize or encode user inputs before they are written to the DOM. Developers implementing custom integrations with Adobe Experience Manager must ensure that all dynamic content insertion uses safe methods such as textContent instead of innerHTML when dealing with untrusted data. Additionally, implementing a Content Security Policy can help mitigate the impact by restricting the sources from which scripts can be loaded and executed, thereby reducing the effectiveness of injected malicious code even if it manages to bypass other defenses. Regular security training for development teams on secure coding standards related to input validation and output encoding is also critical in preventing similar vulnerabilities in future releases or custom modules.