CVE-2025-64542 in Experience Manager as a Cloud Service
Summary
by MITRE • 09/08/2026
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 session. This specific type of vulnerability arises from improper validation or sanitization of user-supplied input that is subsequently used to update the DOM without proper encoding. Unlike server-side XSS where the payload is stored on the target system, this client-side execution relies entirely on manipulating the local environment of the browser after the page has loaded, making it a dynamic and context-dependent attack vector that targets the immediate runtime behavior of the web application interface rather than persistent data storage.
The technical mechanism behind this flaw involves the manipulation of DOM elements through crafted input parameters or URL fragments that are processed by JavaScript functions within Adobe Experience Manager without adequate security checks. When an administrator or authorized user interacts with a specially constructed webpage, the browser interprets the injected script as legitimate code originating from the trusted domain of the application. This bypasses same-origin policy protections because the malicious script runs in the context of the authenticated session, granting it access to cookies, local storage, and other sensitive data associated with that specific Adobe Experience Manager instance. The vulnerability is rooted in a failure to properly sanitize dynamic content updates, allowing arbitrary code execution within the trusted environment.
From an operational perspective, this vulnerability poses significant risks to organizations relying on Adobe Experience Manager for digital asset management and web content delivery. Successful exploitation enables attackers to perform actions such as session hijacking by stealing authentication tokens or cookies, defacing the user interface with malicious overlays, redirecting users to phishing sites, or performing unauthorized administrative actions if the victim has elevated privileges. The requirement for user interaction means that social engineering tactics are often necessary to lure victims into visiting the crafted webpage, but once triggered, the impact can be severe depending on the privilege level of the targeted account. This changes the scope from a simple information leak to potential full compromise of the authenticated session and associated business logic within the platform.
To mitigate this risk, organizations should ensure that Adobe Experience Manager is updated to the latest version containing patches for DOM-based XSS vulnerabilities, as vendor releases typically include enhanced input validation and output encoding mechanisms. Administrators must also implement strict Content Security Policy headers to restrict the sources from which scripts can be executed, thereby limiting the impact of any injected code even if it bypasses initial checks. Additionally, adopting a defense-in-depth strategy that includes regular security audits focusing on client-side JavaScript logic and employing automated static analysis tools capable of detecting DOM-based XSS patterns will help identify similar flaws before they are exploited in production environments. Continuous monitoring for anomalous script execution and restricting the use of eval functions or innerHTML assignments with untrusted data further reduces the attack surface associated with this class of vulnerabilities.