CVE-2026-75719 in Experience Manager as a Cloud Service
Summary
by MITRE • 09/09/2026
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 Document Object Model based cross-site scripting vulnerability, commonly referred to as DOM-based XSS. This specific class of web security flaw differs from traditional reflected or stored XSS because the malicious script execution originates not from server-side input directly rendered into HTML, but rather from client-side JavaScript that processes data in an unsafe manner within the browser environment. The root cause typically involves a sink function, such as innerHTML, document.write, or eval, receiving untrusted data derived from sources like URL parameters, fragment identifiers, or DOM properties without adequate sanitization or validation. In this instance, the vulnerability allows an attacker to manipulate the local DOM structure of the application interface, effectively injecting executable JavaScript code that runs with the privileges and context of the authenticated user interacting with Adobe Experience Manager.
The operational impact of exploiting this vulnerability is significant because it enables a remote attacker to bypass same-origin policy restrictions by executing arbitrary scripts within the security sandbox of the victim's browser session. Since the scope has changed, indicating potential escalation or broader access capabilities compared to previous iterations, an successful exploit could allow the theft of sensitive administrative credentials, session cookies, or multi-factor authentication tokens stored in local storage or memory. Furthermore, it permits the attacker to perform actions on behalf of the victim, such as modifying content within the experience management system, redirecting users to phishing sites, or defacing the application interface. The requirement for user interaction means that exploitation relies heavily on social engineering tactics where a target must be tricked into visiting a specially crafted webpage containing malicious payloads designed to trigger the vulnerable DOM manipulation logic upon loading.
From a classification perspective, this vulnerability aligns with CWE-79, which covers Improper Neutralization of Input During Web Page Generation known as Cross-site Scripting. More specifically, it falls under subcategories related to client-side script injection via DOM properties. In terms of adversary behavior mapping according to the MITRE ATT&CK framework for Enterprise and Mobile platforms, this technique corresponds to T1059 Command and Control scripting or potentially T1204 User Execution if viewed through the lens of initial access vectors that lead to further compromise. The vulnerability represents a failure in input validation at the client-side processing layer, highlighting gaps in how user-supplied data is handled before being interpreted as executable code by the browser engine.
Mitigation strategies for this type of DOM-based XSS require both immediate remediation and long-term architectural improvements. Developers must implement strict output encoding or escaping mechanisms when inserting untrusted data into the DOM using dangerous APIs like innerHTML, outerHTML, insertAdjacentHTML, or document.write. Alternatively, safer alternatives such as textContent should be used whenever possible to ensure that injected content is treated strictly as plain text rather than executable markup. Input validation should also be enforced on all user-controlled inputs before they are processed by the application logic. On the infrastructure side, deploying a Web Application Firewall with rules capable of detecting and blocking malicious script payloads in URL parameters or request bodies can provide an additional layer of defense. Additionally, enabling Content Security Policy headers that restrict inline script execution and define trusted sources for scripts can significantly reduce the impact if such vulnerabilities are present but not immediately patched. Regular security code reviews focusing on client-side JavaScript logic and automated static analysis tools configured to detect DOM-based XSS patterns are essential for maintaining a secure development lifecycle within Adobe Experience Manager environments.