CVE-2026-110076 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 injection allows an adversary to manipulate the DOM structure dynamically through malicious input vectors that are not properly sanitized before being rendered or processed by the web application interface. The technical flaw resides in how the application handles user-supplied data within client-side scripts, failing to enforce strict output encoding or context-aware validation when integrating external inputs into the active document tree. This oversight enables the insertion of arbitrary JavaScript code fragments that become part of the page's executable logic upon rendering.
The operational impact of this vulnerability is significant because it facilitates unauthorized script execution under the security privileges of the authenticated user interacting with Adobe Experience Manager. By exploiting this weakness, an attacker can bypass same-origin policy restrictions and access sensitive data stored in cookies, local storage, or session tokens associated with the victim's active session. This capability allows for comprehensive account takeover scenarios where the malicious actor assumes the identity of the legitimate user, potentially leading to unauthorized content modifications, administrative privilege escalation if the target has elevated rights, or further lateral movement within the organization's internal network infrastructure depending on the integration points available through the application interface.
Exploitation requires a degree of social engineering as it necessitates direct victim interaction in the form of visiting a specially crafted webpage or clicking a malicious link that triggers the DOM manipulation sequence. The attacker constructs a payload designed to exploit specific parsing behaviors within Adobe Experience Manager's client-side components, ensuring that when the user navigates to the target environment, their browser executes the injected code automatically without additional prompts. This reliance on user interaction does not diminish the severity but rather highlights the need for robust input validation and output encoding strategies at both the application logic level and potentially through content security policy implementations to mitigate client-side attacks effectively.
From a standards perspective, this vulnerability aligns with CWE-79 Improper Neutralization of Input During Web Page Generation commonly known as Cross-site Scripting, specifically within the context of DOM-based injection mechanisms where data is written directly into the DOM without adequate sanitization. In terms of tactical mapping according to MITRE ATT&CK frameworks, this exploit falls under T1059 Command and Scripting Interpreter with a focus on JavaScript execution in browser environments, often preceding techniques such as Credential Access via Browser Session Hijacking or Collection through Screen Capture if combined with other malicious payloads. Mitigation strategies should prioritize implementing strict Content Security Policy headers to restrict script sources, enforcing rigorous input validation on all user-supplied data before it is processed by client-side scripts, and utilizing modern framework features that automatically escape output to prevent direct DOM manipulation via untrusted inputs. Regular security audits focusing on client-side code paths and automated static analysis tools configured for XSS detection are essential to identify and remediate similar vulnerabilities within the Adobe Experience Manager deployment architecture.