CVE-2025-47055 is a stored Cross-Site Scripting (XSS) vulnerability affecting Adobe Experience Manager (AEM) versions 6.5.22 and earlier. This vulnerability arises from insufficient input sanitization in certain form fields within AEM, allowing a low-privileged attacker to inject malicious JavaScript code that is persistently stored on the server. When a victim user accesses the affected page containing the maliciously crafted form field, the injected script executes in their browser context. The vulnerability is classified under CWE-79, indicating improper neutralization of input during web page generation. The CVSS 3.1 base score is 5.4 (medium severity), with vector AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N. This means the attack can be launched remotely over the network, requires low privileges but does require user interaction (victim must visit the malicious page), and impacts confidentiality and integrity with a scope change (the vulnerability affects resources beyond the initially vulnerable component). There are no known exploits in the wild as of the publication date, and no patches or fixes have been linked yet. Stored XSS vulnerabilities are particularly dangerous because they can lead to session hijacking, credential theft, defacement, or distribution of malware, especially in web applications used for content management like AEM. Given AEM's role in managing enterprise web content, exploitation could compromise sensitive organizational data or user trust.

For European organizations using Adobe Experience Manager, this vulnerability poses a significant risk to the confidentiality and integrity of web content and user data. Attackers exploiting this flaw could execute arbitrary scripts in the browsers of site visitors, potentially leading to theft of authentication tokens, user credentials, or other sensitive information. This could result in unauthorized access to internal systems or further lateral movement within the organization. Additionally, the injection of malicious scripts could damage the organization's reputation by defacing websites or distributing malware to users. Since AEM is widely used by enterprises, government agencies, and public institutions across Europe for managing digital content and customer engagement platforms, the impact could extend to critical sectors such as finance, healthcare, and public administration. The scope change indicated by the CVSS vector suggests that the vulnerability could affect components beyond the initially vulnerable form fields, increasing the potential attack surface. Although no known exploits are currently reported, the medium severity rating and the nature of stored XSS vulnerabilities warrant proactive mitigation to prevent exploitation.

European organizations should prioritize the following specific mitigation steps: 1) Immediately audit all AEM instances to identify versions 6.5.22 and earlier and plan for urgent upgrades to patched versions once available. 2) Implement strict input validation and output encoding on all form fields within AEM, especially those exposed to external users, to prevent injection of malicious scripts. 3) Employ Content Security Policy (CSP) headers to restrict the execution of unauthorized scripts and reduce the impact of potential XSS attacks. 4) Conduct regular security assessments and penetration testing focused on web application vulnerabilities, including stored XSS, to identify and remediate weaknesses proactively. 5) Monitor web traffic and logs for unusual activity that could indicate exploitation attempts, such as unexpected script injections or anomalous user behavior. 6) Educate web content authors and administrators on secure content management practices to avoid inadvertent introduction of malicious code. 7) Consider deploying Web Application Firewalls (WAFs) with rules tailored to detect and block XSS payloads targeting AEM. These measures, combined with timely patching once Adobe releases updates, will significantly reduce the risk posed by this vulnerability.