CVE-2026-106628 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, commonly referred to as DOM XSS. This type of vulnerability differs from traditional reflected or stored XSS because the malicious script execution originates not directly from server response data but rather through unsafe manipulation of the browser's internal document object model by JavaScript code running within the page itself. The root cause typically involves a sink function that accepts user-controllable input and passes it to an API capable of executing arbitrary scripts, such as innerHTML, outerHTML, or eval, without adequate sanitization or validation. In this specific instance affecting Adobe Experience Manager, the application fails to properly neutralize special characters within dynamic content before rendering them in the DOM context, allowing an attacker to inject executable JavaScript payloads that bypass standard security filters relying solely on server-side escaping mechanisms.
The operational impact of exploiting this vulnerability is significant because it allows for full compromise of the user's session and potentially sensitive data stored locally or accessible via browser APIs. An adversary can craft a malicious webpage designed to trick a victim into visiting a URL containing specific parameters that trigger the vulnerable code path within Adobe Experience Manager. Once the victim interacts with the crafted page, typically by clicking a link or loading an embedded resource, the attacker's script executes in the security context of the trusted domain hosting Adobe Experience Manager. This enables the extraction of session cookies, authentication tokens, and other sensitive credentials, facilitating account takeover attacks. Furthermore, the malicious code can perform actions on behalf of the user without their knowledge, such as modifying content within the experience management interface or redirecting the victim to phishing sites that mimic legitimate administrative panels.
From a threat intelligence perspective, this vulnerability aligns with CWE-79, which covers Improper Neutralization of Input During Web Page Generation known generically as Cross-site Scripting. Specifically, it falls under the sub-category of DOM-based XSS where the source is user input and the sink is a JavaScript function that writes to the document object model. In terms of adversary tactics, this exploitation technique maps directly to MITRE ATT&CK Technique T1059.007, which denotes Command and Scripting Interpreter via Browser or User Interface interactions. The requirement for user interaction classifies this as an attack vector requiring social engineering elements, such as phishing emails or malicious links shared through communication channels, making the initial access phase dependent on convincing a targeted individual to trigger the payload within their browser environment.
Mitigation strategies must address both immediate remediation and long-term architectural improvements. The primary defense involves implementing strict Content Security Policy directives that restrict inline script execution and define allowed sources for dynamic content loading. Developers should also adopt context-aware output encoding libraries specifically designed for DOM manipulation, ensuring that all user-supplied data is treated as plain text rather than executable code when inserted into the document structure. Additionally, using modern JavaScript frameworks with built-in sanitization features can significantly reduce the risk of such vulnerabilities by abstracting direct DOM access and enforcing safe rendering practices. For organizations utilizing Adobe Experience Manager, applying the latest security patches provided by Adobe is essential to close this specific gap in input validation logic while monitoring for any indicators of compromise related to unauthorized script execution or unusual session activity within the administrative console.