CVE-2026-75668 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 environment. In this specific instance, the Adobe Experience Manager interface fails to properly neutralize special characters that could be interpreted as executable script commands by the browser engine. Consequently, if a victim interacts with a crafted webpage designed to exploit this weakness, the malicious code is executed directly within the security context of the vulnerable application rather than in an isolated sandboxed environment.
The operational impact of this vulnerability is significant because it enables attackers to bypass same-origin policy restrictions and perform actions on behalf of the authenticated user. By executing arbitrary JavaScript, an attacker can steal sensitive session cookies or authentication tokens, redirect users to phishing sites, deface the web application interface, or keylog keystrokes entered into forms within Adobe Experience Manager. Since exploitation requires user interaction, such as clicking a malicious link or visiting a specially crafted page hosted by the attacker, this is categorized under social engineering vectors where trust in the source of navigation is exploited. The scope change indicates that the impact extends beyond simple data leakage to potentially affecting other applications running on the same domain if they share cookies or storage mechanisms, thereby amplifying the blast radius of the attack.
From a standards perspective, this vulnerability aligns with CWE-79, which describes Improper Neutralization of Input During Web Page Generation commonly known as Cross-site Scripting. Specifically, it falls under DOM-based XSS where the vulnerability exists in client-side code rather than server-side processing. In terms of adversary tactics and techniques, this exploit maps to MITRE ATT&CK technique T1059, Command and Scripting Interpreter, specifically JavaScript execution within a browser environment. It also relates to T1078, Valid Accounts, if the victim is authenticated when the script executes, allowing for privilege escalation or data exfiltration under valid credentials.
Mitigation strategies should focus on both immediate remediation and long-term architectural improvements. Adobe has released patches that address this specific flaw by implementing stricter input validation and output encoding mechanisms within the affected components of Experience Manager. Administrators must apply these updates immediately to close the security gap. Additionally, developers should implement Content Security Policy headers to restrict the sources from which scripts can be loaded and executed, thereby limiting the damage even if an injection attempt succeeds. Input sanitization libraries that automatically escape special characters before DOM manipulation are essential for preventing similar vulnerabilities in custom code integrated with Adobe Experience Manager. Regular security audits and penetration testing focused on client-side logic will help identify other potential entry points where user input is not adequately sanitized prior to rendering.