CVE-2025-67628 is a stored cross-site scripting (XSS) vulnerability identified in the AMP-MODE Review Disclaimer plugin, specifically affecting versions up to and including 2.0.3. The vulnerability stems from improper neutralization of user-supplied input during the generation of web pages, allowing malicious scripts to be stored and later executed in the context of users visiting the affected pages. Stored XSS is particularly dangerous because the malicious payload persists on the server and is served to multiple users, increasing the attack surface. The CVSS vector indicates that the attack can be launched remotely over the network (AV:N) with low attack complexity (AC:L), requiring low privileges (PR:L) and user interaction (UI:R). The scope is changed (S:C), meaning the vulnerability affects resources beyond the initially vulnerable component. The impact affects confidentiality and integrity partially (C:L/I:L) but does not affect availability (A:N). Although no known exploits are currently reported in the wild, the vulnerability could be leveraged to steal session cookies, perform actions on behalf of users, or manipulate displayed content, potentially leading to further compromise. The plugin is commonly used to display disclaimers or reviews on websites, often in e-commerce or content platforms, making it a target for attackers aiming to exploit trust relationships with users. The lack of available patches at the time of publication necessitates immediate mitigation steps by administrators.

For European organizations, the impact of CVE-2025-67628 can be significant, especially for those operating public-facing websites that utilize the AMP-MODE Review Disclaimer plugin. Successful exploitation could lead to unauthorized disclosure of sensitive user information, such as session tokens or personal data, through script injection. This could facilitate account takeover, phishing, or fraud. Integrity of displayed content could be compromised, damaging brand reputation and user trust. While availability is not directly impacted, the indirect consequences of data leakage or manipulation could lead to regulatory scrutiny under GDPR, resulting in financial penalties. Organizations in sectors like e-commerce, online reviews, and digital publishing are particularly at risk. The requirement for low privileges and user interaction lowers the barrier for attackers, increasing the likelihood of exploitation if mitigations are not applied. The absence of known exploits currently provides a window for proactive defense but should not lead to complacency.

To mitigate CVE-2025-67628, European organizations should implement the following specific measures: 1) Immediately audit and restrict user input fields associated with the Review Disclaimer plugin to ensure only sanitized and validated data is accepted. 2) Employ robust output encoding techniques (e.g., HTML entity encoding) when rendering user-generated content to prevent script execution. 3) Monitor and review logs for unusual input patterns or repeated failed attempts to inject scripts. 4) Limit user privileges to the minimum necessary, especially for users who can submit content to the affected plugin. 5) Deploy Content Security Policy (CSP) headers to restrict the execution of unauthorized scripts on affected pages. 6) Stay alert for official patches or updates from the AMP-MODE vendor and apply them promptly once available. 7) Consider temporary disabling or replacing the vulnerable plugin if immediate patching is not feasible. 8) Educate web administrators and developers about secure coding practices related to input handling and output encoding. These targeted actions go beyond generic advice and address the specific nature of the stored XSS vulnerability in this plugin.