CVE-2026-75685 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 Cross-Site Scripting vulnerability classified under CWE-79, which allows an attacker to inject and execute malicious JavaScript code within the context of the victim's browser. This specific flaw stems from insufficient validation or sanitization of user-supplied input that is subsequently written into the Document Object Model without proper encoding. The attack vector relies on DOM-based manipulation rather than server-side processing, meaning the vulnerability exists entirely in the client-side script logic. An adversary can craft a malicious webpage containing scripts designed to exploit this weakness by manipulating how the browser interprets and renders specific elements of the page structure.
The operational impact of this vulnerability is significant because it enables an attacker to bypass same-origin policy restrictions if successful exploitation occurs within the trusted domain context. By executing arbitrary JavaScript, the attacker can perform actions such as stealing session cookies, hijacking user sessions, defacing the website interface, or redirecting users to phishing sites. Since the scope has changed and requires user interaction, the attack typically involves social engineering tactics where a victim is lured into visiting a specially crafted URL or webpage hosted by the attacker. Once the victim accesses this content, the malicious script executes in their browser environment, potentially compromising sensitive data associated with that Adobe Experience Manager session.
From a threat intelligence perspective, this vulnerability aligns with MITRE ATT&CK techniques related to Client-side Scripting Injection and Web Session Hijacking. The lack of input validation on dynamic DOM elements creates an entry point for persistent or non-persistent XSS attacks depending on how the injected data is stored or processed by the application logic. This type of flaw undermines the integrity and confidentiality guarantees provided by modern web applications, particularly those handling enterprise content management where sensitive business documents are often accessed through the interface.
To mitigate this risk, developers must implement strict input validation and output encoding strategies for all dynamic DOM manipulations. Utilizing Content Security Policy headers can help restrict the sources from which scripts are allowed to execute, thereby reducing the impact of successful injection attempts. Additionally, employing modern JavaScript frameworks that automatically escape data by default or using dedicated sanitization libraries like DOMPurify can prevent malicious payloads from being rendered as executable code. Regular security testing and static analysis should be integrated into the development lifecycle to identify such client-side vulnerabilities before deployment in production environments.