CVE-2025-47501 is a security vulnerability classified as CWE-79, which pertains to improper neutralization of input during web page generation, commonly known as Cross-site Scripting (XSS). Specifically, this vulnerability affects the Code Atlantic Content Control product up to version 2.6.1. The issue is a DOM-based XSS, meaning that the malicious script injection occurs on the client side through manipulation of the Document Object Model (DOM) in the user's browser. This type of XSS does not necessarily require server-side code injection but exploits client-side scripts that improperly handle untrusted input. The vulnerability allows an attacker with low privileges (PR:L) to execute arbitrary scripts in the context of the victim's browser session, potentially leading to theft of sensitive information, session hijacking, or manipulation of the web application interface. The CVSS 3.1 base score is 6.5, indicating a medium severity level, with an attack vector of network (AV:N), low attack complexity (AC:L), requiring privileges (PR:L), user interaction (UI:R), and a scope change (S:C). The impact affects confidentiality, integrity, and availability to a limited degree (C:L/I:L/A:L). No known exploits are currently reported in the wild, and no patches have been linked yet. The vulnerability was published on May 7, 2025, and has been enriched by CISA, indicating recognition by US cybersecurity authorities.

For European organizations using Code Atlantic Content Control, this vulnerability poses a moderate risk. Successful exploitation could lead to unauthorized script execution in users' browsers, potentially compromising user credentials, session tokens, or other sensitive data handled by the web application. This could facilitate further attacks such as privilege escalation, data exfiltration, or phishing campaigns leveraging the trusted domain. Given the requirement for user interaction and some level of privileges, the attack surface is somewhat limited but still significant, especially in environments where Content Control is used to manage or filter web content for employees or customers. The scope change indicates that the vulnerability could affect components beyond the initially targeted system, possibly impacting integrated services or connected applications. European organizations with regulatory obligations under GDPR must consider the risk of data breaches resulting from such XSS attacks, which could lead to legal and reputational consequences. The absence of known exploits in the wild provides a window for proactive mitigation before widespread attacks occur.

Organizations should prioritize the following actions: 1) Monitor Code Atlantic's official channels for security patches or updates addressing CVE-2025-47501 and apply them promptly once available. 2) Implement Content Security Policy (CSP) headers to restrict the execution of untrusted scripts and reduce the impact of DOM-based XSS. 3) Conduct a thorough review of client-side scripts and input handling within the Content Control deployment to identify and remediate unsafe DOM manipulations. 4) Educate users about the risks of interacting with suspicious links or content that could trigger XSS attacks, especially since user interaction is required. 5) Employ web application firewalls (WAFs) with rules tuned to detect and block XSS payloads targeting the affected product. 6) Perform regular security testing, including dynamic analysis and penetration testing focused on client-side vulnerabilities. 7) Limit user privileges where possible to reduce the potential impact of exploitation. These measures combined will help reduce the likelihood and impact of exploitation until an official patch is released.