CVE-2026-110077 in Experience Manager
Summary
by MITRE • 10/13/2026
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 • 10/13/2026
Adobe Experience Manager contains a critical client-side security flaw classified as a Document Object Model-based Cross-Site Scripting vulnerability, which fundamentally alters the traditional scope of attack by shifting execution context to the end-user's browser environment rather than the server infrastructure. This specific type of vulnerability arises when an application processes untrusted data in a way that allows malicious scripts to be injected into the web page viewed by other users. In this instance, the flaw resides within how Adobe Experience Manager handles input or dynamic content updates without adequate sanitization or encoding, enabling an attacker to manipulate the DOM structure directly. The technical mechanism involves injecting executable JavaScript code through manipulated inputs such as URL parameters, form fields, or reflected data that is subsequently rendered by the browser's rendering engine without proper validation checks against script injection patterns.
The operational impact of this vulnerability is significant because it allows for session hijacking, credential theft, and defacement of the user interface within the context of the victim's authenticated session with Adobe Experience Manager. Since exploitation requires a specific level of user interaction where the victim must visit a crafted webpage or click on a malicious link containing the exploit payload, the attack vector is considered remote but interactive. This dependency on social engineering elements means that while automated scanning tools may not easily detect this flaw during passive analysis, targeted attacks can successfully compromise sensitive data stored in browser cookies, local storage, or session tokens if those resources are accessible to the injected script. The change in scope indicates that previous assessments might have underestimated the risk by focusing solely on server-side impacts, whereas this vulnerability directly compromises client-side integrity and confidentiality.
From a classification perspective, this issue aligns with CWE-79, which defines Improper Neutralization of Input During Web Page Generation commonly known as Cross-site Scripting. The specific variant here is DOM-based XSS, distinct from reflected or stored variants because the payload executes via manipulation of the client-side environment rather than through server response modification alone. In terms of adversary tactics and techniques, this vulnerability maps to MITRE ATT&CK technique T1059, specifically sub-technique 007 for JavaScript execution on Windows systems when applicable, though generally categorized under web application attacks that leverage browser capabilities. Attackers utilize these vectors to bypass traditional server-side security controls since the malicious code runs within the trusted origin context of the Adobe Experience Manager domain in the victim's browser.
Mitigation strategies must focus on both immediate remediation and long-term defensive coding practices. Developers should implement strict input validation and output encoding for all dynamic content rendered into the DOM, ensuring that special characters are escaped before being processed by JavaScript functions such as innerHTML or document.write. Utilizing Content Security Policy headers can further restrict the execution of unauthorized scripts and mitigate the impact even if an injection occurs by limiting sources from which scripts can be loaded. Additionally, Adobe should release a patch addressing this specific DOM manipulation flaw in their next update cycle for Experience Manager components involved in rendering user-supplied data. Administrators are advised to monitor access logs for unusual patterns indicative of XSS attempts and ensure that all users operate with the latest version of the software once patches are available to close this security gap effectively.