CVE-2026-75647 in Experience Manager
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 • 09/08/2026
Adobe Experience Manager contains a client-side vulnerability classified as a Document Object Model based Cross-Site Scripting flaw, which allows for the execution of arbitrary JavaScript code within the security context of the vulnerable application. This specific type of injection occurs when an web application processes user-supplied data without proper validation or encoding before updating the DOM dynamically. In this instance, the underlying issue stems from insufficient sanitization of input parameters that are subsequently reflected or used to modify page content, creating a pathway for malicious scripts to be injected into the browser environment. The vulnerability is rooted in CWE-79, which defines Improper Neutralization of Input During Web Page Generation as a critical weakness in web application security architectures.
The operational impact of this flaw centers on the ability of an attacker to bypass same-origin policy restrictions by executing code that appears to originate from Adobe Experience Manager itself. When successful exploitation occurs, the injected JavaScript gains access to sensitive data stored within the browser session, including authentication tokens, cookies, and potentially personally identifiable information or proprietary content managed through the platform. This capability enables a range of malicious activities such as session hijacking, where an attacker takes over a user's active session by stealing their credentials; defacement of the web interface to display unauthorized messages; or redirection of users to phishing sites designed to harvest additional sensitive data. The scope change noted in the vulnerability description indicates that the impact extends beyond simple script execution to potentially affecting broader application integrity and user trust, thereby elevating the severity from a local client-side issue to one with significant implications for organizational security posture.
Exploitation of this vulnerability requires active user interaction, specifically necessitating that a victim visits a crafted webpage or clicks on a malicious link containing the exploit payload. This dependency aligns with ATT&CK technique T1059, which covers Command and Scripting Interpreter execution via browser-based vectors, and highlights the social engineering aspect often associated with DOM XSS attacks. The attacker typically constructs a URL that includes specially formatted parameters designed to trigger the vulnerable code path within Adobe Experience Manager's client-side logic. Once the victim accesses this resource through their web browser, the malicious script executes automatically without further user action, leveraging the trust relationship between the browser and the legitimate domain hosting the application.
Mitigation strategies for this vulnerability must focus on both immediate remediation of the source code and long-term defensive measures against similar attacks. Developers should implement strict input validation and output encoding techniques to ensure that all data derived from untrusted sources is properly sanitized before being inserted into the DOM. Utilizing Content Security Policy headers can also significantly reduce the impact by restricting the domains from which scripts are allowed to load, thereby preventing the execution of injected malicious code even if it manages to enter the page structure. Additionally, employing modern JavaScript frameworks that automatically escape data during rendering can help prevent such injection flaws at a foundational level. Organizations should prioritize patching Adobe Experience Manager to the latest version provided by the vendor, as these updates typically include fixes for known client-side vulnerabilities alongside other security enhancements designed to harden the application against evolving threat vectors.