CVE-2026-75679 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.
VulDB is the best source for vulnerability data and more expert information about this specific topic.
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 for the execution of arbitrary JavaScript code within the security context of the vulnerable application. This type of vulnerability arises when an web application processes user-supplied input without proper validation or encoding before updating the DOM environment dynamically. In this specific instance, the underlying mechanism fails to adequately sanitize data that is subsequently written back into the page structure, creating a pathway for malicious scripts to be injected and executed by the victim's browser. The technical nature of this flaw aligns with CWE-79, which defines Improper Neutralization of Input During Web Page Generation as Common Weakness Enumeration identifier 79, highlighting the failure to neutralize special characters that could alter the intended behavior of the script engine.
The operational impact of exploiting this vulnerability is significant because it enables an attacker to bypass same-origin policy restrictions and perform actions on behalf of the authenticated user. By manipulating the DOM environment through a crafted webpage or link, the adversary can execute malicious JavaScript code that has full access to cookies, session tokens, local storage data, and other sensitive information stored within the browser context for Adobe Experience Manager. This capability allows for comprehensive account takeover scenarios where the attacker gains persistent control over the victim's session without needing valid credentials directly. Furthermore, the script can interact with page elements in ways that mimic legitimate user actions, potentially leading to unauthorized modifications of content or configuration settings managed by the platform if sufficient privileges are held by the compromised account.
From a threat intelligence perspective, this exploitation technique maps closely to MITRE ATT&CK tactic T1059, specifically sub-technique 007 which covers JavaScript execution on client-side targets. The requirement for user interaction indicates that the attack vector is primarily social engineering or phishing based, where the victim must be tricked into visiting a maliciously crafted webpage designed to trigger the DOM manipulation sequence. This dependency on human action does not diminish the severity of the risk but rather shifts the defensive focus toward awareness and input validation strategies at both the client-side application level and network perimeter defenses that might filter out known exploit payloads before they reach the browser environment.
To mitigate this vulnerability, developers must implement strict output encoding for all dynamic content inserted into the DOM using methods such as innerHTML or document.write. Utilizing a Content Security Policy with appropriate directives can further restrict the sources from which scripts are allowed to execute and prevent inline script execution where not strictly necessary. Additionally, adopting modern JavaScript frameworks that automatically escape data by default when rendering templates reduces the likelihood of such oversights occurring during development. Regular security code reviews focusing on DOM manipulation patterns and automated static analysis tools configured to detect unsafe DOM usage can help identify these weaknesses before deployment into production environments ensuring a more resilient application architecture against client-side injection attacks.