CVE-2022-3056 is a vulnerability in Google Chrome versions prior to 105.0.5195.52 involving insufficient enforcement of the Content Security Policy (CSP). CSP is a critical security mechanism designed to prevent cross-site scripting (XSS) and other code injection attacks by restricting the sources from which content can be loaded and executed in the browser. The vulnerability arises because Chrome failed to properly enforce certain CSP directives, allowing a remote attacker to bypass these policies by crafting a malicious HTML page. This bypass could enable the attacker to execute unauthorized scripts or load malicious content, potentially leading to integrity violations such as unauthorized actions or data manipulation within the browser context. The CVSS 3.1 score of 6.5 reflects a medium severity, indicating that the vulnerability is remotely exploitable over the network without requiring privileges, but does require user interaction (e.g., visiting a malicious webpage). The impact is limited to integrity compromise without direct confidentiality or availability loss. There are no known exploits in the wild reported at the time of publication, and no specific patch links were provided, but the issue is addressed in Chrome version 105.0.5195.52 and later. The underlying weakness is classified under CWE-693, which relates to insufficient policy enforcement, emphasizing that the security controls intended to restrict content execution were not fully effective.

For European organizations, this vulnerability poses a moderate risk primarily to end-user systems running vulnerable versions of Google Chrome. Successful exploitation could allow attackers to bypass CSP protections, potentially enabling the execution of malicious scripts that could manipulate web application behavior, perform unauthorized actions on behalf of the user, or facilitate further attacks such as session hijacking or phishing. While the vulnerability does not directly compromise confidentiality or availability, the integrity impact could lead to data manipulation or unauthorized transactions, which can have significant consequences in sectors like finance, healthcare, and government. Given the widespread use of Chrome across European enterprises and public institutions, the vulnerability could be leveraged in targeted attacks or broader phishing campaigns. However, the requirement for user interaction (visiting a malicious page) and lack of known active exploits reduce the immediate threat level. Organizations relying heavily on web applications with strict CSP implementations should be particularly vigilant, as the bypass undermines a key security layer designed to protect against client-side attacks.

European organizations should ensure that all Google Chrome installations are updated to version 105.0.5195.52 or later, where this vulnerability is patched. Beyond patching, organizations should enforce strict browser update policies and consider deploying enterprise management tools to monitor and enforce browser versions. Web developers should review and strengthen their CSP configurations, employing nonce- or hash-based policies rather than relying solely on source whitelisting, to reduce the impact of potential CSP bypasses. Additionally, organizations should implement defense-in-depth strategies such as Content Security Policy reporting (CSP violation reports) to detect attempted policy bypasses, and use browser isolation technologies or endpoint protection solutions that can detect and block malicious script execution. User awareness training should emphasize the risks of interacting with untrusted web content to mitigate the user interaction requirement for exploitation. Network-level protections such as web filtering and threat intelligence feeds can help block access to known malicious sites that might exploit this vulnerability.