CVE-2026-110080 in Experience Manager
Summary
by MITRE • 10/15/2026
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 • 10/15/2026
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. This specific type of vulnerability arises from improper validation or sanitization of user-supplied input that is directly used in dynamic HTML generation without adequate encoding. The core technical failure lies in the application's handling of data streams where untrusted sources are written into the DOM, enabling script execution rather than static text rendering. This represents a classic injection flaw where the browser interprets injected code as executable instructions due to insufficient separation between data and commands within the client-side environment.
The operational impact of this vulnerability is significant because it compromises the confidentiality, integrity, and availability of user sessions associated with Adobe Experience Manager. Successful exploitation allows an attacker to bypass same-origin policy restrictions, potentially leading to session hijacking through cookie theft, credential harvesting via keylogging scripts, or defacement of the application interface. Furthermore, the attacker can perform actions on behalf of the victim if they are authenticated, such as modifying content settings or accessing sensitive administrative features depending on the user's privileges within the system. The scope change noted in the vulnerability description indicates that the impact extends beyond isolated data exposure to potentially affecting broader session states or interacting with other components of the web application environment.
From a threat modeling perspective, this flaw aligns with CWE-79, which defines Improper Neutralization of Input During Web Page Generation commonly known as Cross-site Scripting. In terms of adversary tactics, this vulnerability facilitates techniques associated with ATT&CK ID T1059, specifically Command and Scripting Interpretation via JavaScript execution within the browser context. The attack vector is primarily classified under Initial Access requiring user interaction, meaning the exploitation relies on social engineering or lure mechanisms to direct a victim to a crafted webpage containing the malicious payload. This dependency on human action distinguishes it from automated server-side exploits but does not diminish its severity given the high value of administrative interfaces in enterprise content management systems.
Mitigation strategies should focus on both immediate remediation and long-term architectural improvements. Adobe has released patches that address this vulnerability by implementing stricter input validation and output encoding mechanisms within the affected components of Experience Manager. Administrators are advised to apply these updates immediately to close the security gap. Additionally, developers must enforce Content Security Policy headers to restrict the sources from which scripts can be loaded, thereby limiting the impact even if an injection attempt occurs. Implementing robust client-side input sanitization libraries that automatically encode special characters before DOM insertion is critical for preventing similar flaws in custom modules or integrations within the platform. Regular security audits and static code analysis focused on XSS patterns should also be integrated into the development lifecycle to ensure ongoing compliance with secure coding standards.