CVE-2025-64822 is a stored Cross-Site Scripting (XSS) vulnerability identified in Adobe Experience Manager (AEM) versions 6.5.23 and earlier. Stored XSS occurs when malicious script code is permanently stored on the target server, typically within form fields or content submitted by users, and later executed in the browsers of other users who access the affected content. In this case, a low privileged attacker can exploit vulnerable form fields in AEM to inject arbitrary JavaScript code. When a victim visits a page containing the injected script, the malicious code executes in their browser context, potentially allowing theft of session cookies, user credentials, or performing actions on behalf of the victim. The vulnerability requires the attacker to have some level of privilege to submit data but does not require administrative access. User interaction is necessary as the victim must visit the compromised page. The CVSS 3.1 base score is 5.4, indicating medium severity, with vector metrics AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N. This means the attack is network exploitable with low attack complexity, requires low privileges, and user interaction, impacting confidentiality and integrity partially but not availability. No public exploits are known at this time, and Adobe has not yet released patches. The vulnerability is classified under CWE-79, the common weakness enumeration for Cross-Site Scripting. Stored XSS in AEM is particularly concerning because AEM is widely used by enterprises for web content management, meaning many users could be exposed if malicious scripts are injected. Attackers could leverage this to perform phishing, session hijacking, or deliver malware. The vulnerability's scope includes all users accessing the affected pages, potentially impacting internal and external users depending on deployment. The vulnerability's persistence and ability to bypass input validation mechanisms make it a significant risk if unmitigated.

For European organizations, the impact of CVE-2025-64822 can be substantial, especially for those relying on Adobe Experience Manager for public-facing websites, intranet portals, or digital customer engagement platforms. Exploitation could lead to unauthorized disclosure of sensitive information, including session tokens and user credentials, enabling further compromise of user accounts or internal systems. The integrity of web content can be undermined, damaging organizational reputation and trust. Attackers could use the vulnerability to conduct targeted phishing campaigns or deliver malicious payloads to users, increasing the risk of broader compromise. Although availability is not directly affected, the indirect consequences such as reputational damage, regulatory fines under GDPR for data breaches, and operational disruptions could be significant. Organizations in sectors such as finance, government, healthcare, and critical infrastructure are particularly at risk due to the sensitivity of their data and the reliance on secure web content delivery. The medium severity rating suggests that while the vulnerability is not immediately critical, it should be addressed promptly to prevent exploitation. The lack of known exploits in the wild currently provides a window for mitigation before active attacks emerge.

1. Monitor Adobe's official channels closely for patches addressing CVE-2025-64822 and apply them immediately upon release. 2. Implement strict input validation on all form fields within Adobe Experience Manager to sanitize and reject malicious script content before storage. 3. Employ robust output encoding techniques on all user-supplied content rendered in web pages to prevent script execution. 4. Restrict access to form submission functionalities to trusted users and limit privileges to the minimum necessary. 5. Use Content Security Policy (CSP) headers to restrict the execution of inline scripts and reduce the impact of potential XSS payloads. 6. Conduct regular security assessments and penetration testing focused on web application vulnerabilities, including stored XSS. 7. Educate content authors and administrators on secure content handling practices within AEM. 8. Implement web application firewalls (WAF) with rules tuned to detect and block XSS attack patterns targeting AEM. 9. Monitor logs and user activity for unusual behavior indicative of exploitation attempts. 10. Consider isolating critical AEM instances or sensitive content behind additional authentication layers to reduce exposure.