CVE-2026-75636 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 an attacker to inject and execute malicious JavaScript code within the context of a victim's web browser session. This type of vulnerability arises when an application processes user-supplied input without adequate validation or sanitization before rendering it in the DOM. In this specific instance, the Adobe Experience Manager interface fails to properly neutralize special characters that have meaning in HTML, allowing script tags and event handlers to be interpreted as executable code rather than static data by the browser engine.
The technical mechanism of exploitation involves an attacker crafting a malicious webpage or link containing specially formatted input designed to trigger the vulnerability when processed by Adobe Experience Manager's client-side components. When a victim interacts with this crafted content, typically by visiting the URL or clicking on a manipulated element within their browsing session, the application incorporates the untrusted data into the DOM structure without sufficient filtering. This allows the injected script to run in the security context of the vulnerable site, granting it access to cookies, local storage tokens, and other sensitive information associated with that domain due to same-origin policy rules.
The operational impact of this vulnerability is significant because it enables session hijacking, credential theft, defacement, or redirection to malicious sites. Since exploitation requires user interaction such as visiting a crafted webpage, the attack vector relies on social engineering tactics where an attacker must convince a target with valid access credentials to interact with the malicious content. Once executed, the malicious script can perform actions on behalf of the authenticated user, potentially leading to unauthorized administrative changes within the Adobe Experience Manager environment or exfiltration of sensitive enterprise data stored in browser storage mechanisms.
This vulnerability aligns with CWE-79, which describes Improper Neutralization of Input During Web Page Generation commonly known as Cross-site Scripting. From a tactical perspective, it maps to MITRE ATT&CK technique T1059, specifically the execution of scripts via web browsers, and falls under the initial access or persistence phases depending on how the injected code is utilized by the attacker. The change in scope indicates that this vulnerability may affect broader components of the application than previously identified, increasing the potential attack surface for adversaries targeting Adobe Experience Manager deployments.
Mitigation strategies should focus on implementing robust input validation and output encoding practices within both client-side JavaScript libraries and server-side rendering logic to ensure that all user-supplied data is treated as text rather than executable code. Developers must utilize context-aware escaping techniques appropriate for HTML, attribute, URL, or script contexts depending on where the data is rendered. Additionally, deploying Content Security Policy headers can significantly reduce the impact of successful XSS attacks by restricting the sources from which scripts are allowed to load and execute. Regular security assessments and static application security testing should be integrated into the development lifecycle to identify such DOM-based flaws before deployment in production environments.