CVE-2026-75683 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 • 09/09/2026
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 browser session. This specific type of vulnerability arises from improper validation or sanitization of user-supplied input that is subsequently written directly into the DOM without adequate encoding. Unlike server-side XSS where the payload is stored on the web application itself, this client-side execution relies entirely on manipulating the local environment of the target machine through crafted URLs or webpage content that interacts with vulnerable JavaScript functions within the Adobe Experience Manager interface.
The technical mechanism involves an attacker constructing a malicious URL or webpage containing specially formatted script tags or event handlers designed to trigger when processed by the browser's rendering engine in conjunction with specific Adobe Experience Manager components. When a user visits this crafted location, the application fails to properly sanitize the input data before it is used as part of dynamic content generation. This failure permits the execution of arbitrary JavaScript commands that run with the same privileges and permissions as legitimate scripts loaded from the trusted domain. The scope change noted in the vulnerability description indicates that the impact may extend beyond simple script injection, potentially affecting session tokens or local storage mechanisms depending on how the application handles the injected code.
Exploitation of this flaw requires active user interaction because it is not a remote code execution vector accessible through automated network scanning alone. A victim must be tricked into visiting a maliciously crafted webpage or clicking a link that directs them to such content while authenticated with Adobe Experience Manager. Once executed, the attacker can perform actions on behalf of the user, including stealing session cookies, capturing sensitive form data entered by the user, performing unauthorized administrative operations if the user has elevated privileges, or redirecting the victim to other malicious sites for further phishing attacks. This significantly compromises the confidentiality and integrity of the system from the perspective of the end-user's browser environment.
From a classification standpoint, this vulnerability aligns with CWE-79 Improper Neutralization of Input During Web Page Generation commonly known as Cross-site Scripting in the Common Weakness Enumeration database. In terms of adversary tactics, it maps to ATT&CK technique T1059 Command and Scripting Interpreter specifically JavaScript execution under the Execution tactic, allowing attackers to leverage client-side scripts for further exploitation steps such as credential harvesting or lateral movement within a web application context.
Mitigation strategies should focus on implementing robust input validation and output encoding practices at both the framework level and custom code layers. Developers must ensure that all dynamic content is properly encoded before being inserted into the DOM, utilizing built-in browser APIs like textContent instead of innerHTML where possible to prevent script execution. Additionally, deploying a Content Security Policy can help mitigate the impact by restricting the sources from which scripts are allowed to load or execute. Adobe should release and apply security patches that address this specific input handling flaw in affected versions of Experience Manager. Users must be advised to keep their software updated and exercise caution when interacting with links from untrusted sources while logged into administrative interfaces.