CVE-2026-19612 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 • 09/08/2026
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 specific type of vulnerability arises when an application processes user-supplied input without proper validation or encoding before updating the DOM environment dynamically. In this instance, the Adobe Experience Manager interface fails to adequately sanitize data that is subsequently used in unsafe DOM APIs, such as innerHTML, document.write, or setting attributes like href and src directly from untrusted sources. This lack of sanitization creates a pathway for script injection where malicious payloads are interpreted by the browser's JavaScript engine rather than being rendered as inert text content.
The operational impact of this vulnerability is significant because it enables an attacker to bypass same-origin policy restrictions, effectively gaining control over the user's interaction with the application while they remain authenticated and active within their session. By manipulating the DOM environment, a malicious actor can perform actions such as stealing sensitive cookies or authentication tokens, hijacking user sessions, defacing the web interface, redirecting users to phishing sites, or executing arbitrary commands that compromise the integrity of the data displayed to the victim. The requirement for user interaction means that exploitation typically relies on social engineering tactics where a victim is lured into visiting a crafted webpage containing the malicious payload, often through links embedded in emails, forums, or other web pages controlled by the attacker.
From a classification perspective, this vulnerability aligns with CWE-79, which describes Improper Neutralization of Input During Web Page Generation commonly known as Cross-site Scripting. The attack vector is categorized under ATT&CK technique T1059, specifically JavaScript execution on client-side targets, and falls within the broader category of Client-Side Injection. This classification highlights that the exploitation occurs entirely within the browser environment without requiring server-side compromise or remote code execution privileges on the underlying infrastructure hosting Adobe Experience Manager.
Mitigation strategies for this vulnerability involve both immediate technical controls and long-term architectural improvements. Developers must implement strict input validation and output encoding mechanisms to ensure that all user-supplied data is treated as untrusted until it has been properly sanitized according to the context in which it will be rendered, such as HTML body content versus attribute values or JavaScript strings. Utilizing Content Security Policy headers can also help mitigate the impact by restricting the sources from which scripts are allowed to load and execute, thereby preventing many types of injected script execution even if the injection point is not fully patched. Additionally, Adobe should release a security update that addresses this specific DOM manipulation flaw by enforcing safer APIs for dynamic content updates and ensuring that any data derived from user input is escaped before being inserted into the DOM structure.