CVE-2024-20760 in Experience Manager
Summary
by MITRE • 03/18/2024
Adobe Experience Manager versions 6.5.19 and earlier are affected by a stored Cross-Site Scripting (XSS) vulnerability that could be abused by an attacker to inject malicious scripts into vulnerable form fields. Malicious JavaScript may be executed in a victim’s browser when they browse to the page containing the vulnerable field.
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Analysis
by VulDB Data Team • 04/15/2025
Adobe Experience Manager represents a comprehensive web content management platform widely deployed across enterprise environments for digital experience management and content publishing. The platform serves as a central hub for creating, managing, and delivering digital content across multiple channels including websites, mobile applications, and digital marketing campaigns. Given its critical role in enterprise digital infrastructure, vulnerabilities within AEM can have significant operational and security implications for organizations relying on its services.
The stored cross-site scripting vulnerability identified in CVE-2024-20760 affects versions 6.5.19 and earlier of Adobe Experience Manager, representing a fundamental flaw in the platform's input validation and output encoding mechanisms. This vulnerability specifically targets form fields within the AEM interface where user input is stored and subsequently rendered without proper sanitization. The flaw allows attackers to inject malicious JavaScript code into form fields that are later executed when victims browse to pages containing these vulnerable fields. The stored nature of this XSS vulnerability means that the malicious payload persists in the application's database or storage system, making it particularly dangerous as it can affect multiple users over time.
The technical exploitation of this vulnerability follows standard XSS attack patterns where an attacker crafts malicious input containing JavaScript code and submits it through vulnerable form fields. When other users view the page containing the stored malicious content, their browsers execute the injected script within the context of the victim's session. This can lead to session hijacking, credential theft, redirection to malicious sites, or execution of arbitrary commands on behalf of the victim. The impact extends beyond simple script execution as it can enable attackers to establish persistent access to affected systems, particularly when combined with other exploitation techniques.
From a security perspective, this vulnerability directly relates to CWE-79 which defines Cross-Site Scripting as a weakness where applications fail to properly encode output or validate input, allowing malicious scripts to be executed. The vulnerability also aligns with ATT&CK technique T1531 which describes the use of malicious file content to gain access to systems. Organizations using Adobe Experience Manager are particularly vulnerable as this affects core content management functionality, potentially allowing attackers to compromise not just individual user sessions but entire content delivery systems. The stored nature of the vulnerability means that even if administrators patch the application, previously stored malicious payloads may continue to pose threats until manually removed from the system.
The operational impact of this vulnerability extends beyond immediate security concerns to encompass business continuity and regulatory compliance issues. Organizations may face data breaches, unauthorized access to sensitive content, and potential violations of data protection regulations such as GDPR or CCPA. The vulnerability's presence in widely used AEM versions means that numerous enterprises across various sectors including finance, healthcare, and government may be affected. Security teams must conduct comprehensive assessments of their AEM implementations, review stored content for malicious payloads, and implement immediate remediation measures. The vulnerability underscores the importance of regular security assessments, proper input validation, and output encoding practices in enterprise content management systems. Organizations should prioritize upgrading to patched versions of Adobe Experience Manager while implementing additional monitoring and detection mechanisms to identify any previously compromised content within their systems.