CVE-2025-46880 is a stored Cross-Site Scripting (XSS) vulnerability affecting Adobe Experience Manager (AEM) versions 6.5.22 and earlier. This vulnerability allows a low-privileged attacker to inject malicious JavaScript code into vulnerable form fields within the AEM interface. When a victim user accesses a page containing the injected malicious script, the script executes in their browser context. The vulnerability arises due to insufficient input sanitization or output encoding of user-supplied data in form fields, enabling persistent script injection. The CVSS 3.1 base score is 5.4 (medium severity), reflecting that the attack vector is network-based (AV:N), requires low privileges (PR:L), and user interaction (UI:R) is necessary to trigger the malicious script. The scope is changed (S:C), indicating that the vulnerability can affect resources beyond the initially vulnerable component. The impact affects confidentiality and integrity (C:L/I:L) but not availability (A:N). No known exploits are currently reported in the wild, and no patches or updates have been linked yet. Stored XSS in a content management system like AEM is particularly dangerous because it can affect multiple users who access the compromised content, potentially leading to session hijacking, credential theft, or unauthorized actions performed on behalf of users. Given AEM’s role in managing web content and digital assets, exploitation could lead to widespread compromise of websites and intranet portals managed by affected organizations.

For European organizations using Adobe Experience Manager, this vulnerability poses a significant risk to the confidentiality and integrity of their web applications and internal portals. Attackers could leverage the stored XSS to execute malicious scripts that steal session cookies, perform unauthorized actions, or deliver further malware payloads to users. This can lead to data breaches, defacement of public-facing websites, loss of customer trust, and regulatory non-compliance, especially under GDPR which mandates protection of personal data. Since AEM is widely used by enterprises, government agencies, and large institutions across Europe for content management, the potential impact includes disruption of business operations and reputational damage. The requirement for user interaction means phishing or social engineering may be used to lure victims to vulnerable pages, increasing the risk to employees and customers. The medium severity score suggests the threat is moderate but should not be underestimated given the critical nature of content managed by AEM.

European organizations should immediately audit their Adobe Experience Manager installations to identify affected versions (6.5.22 and earlier). Until official patches are released, implement strict input validation and output encoding on all form fields to prevent script injection. Employ Content Security Policy (CSP) headers to restrict execution of unauthorized scripts in browsers. Conduct user awareness training to reduce the risk of social engineering attacks that could trigger the vulnerability. Monitor web application logs for unusual input patterns or script injections. Segregate AEM administrative interfaces from public-facing networks where possible and enforce least privilege access controls. Regularly update and patch AEM as soon as Adobe releases a fix. Consider deploying web application firewalls (WAFs) with custom rules to detect and block XSS payloads targeting AEM. Finally, perform penetration testing focused on XSS vulnerabilities to validate the effectiveness of mitigations.