CVE-2025-67567 is a vulnerability identified in the uixthemes Sober product, specifically affecting versions up to and including 3.5.11. The issue involves the exposure of sensitive system information to unauthorized control spheres, meaning that an attacker without proper authorization can retrieve embedded sensitive data from the system. This type of vulnerability typically arises from improper access controls or insufficient validation in the theme management or rendering components, allowing attackers to access configuration files, system metadata, or other embedded secrets that are not intended for public or unauthorized viewing. Although no known exploits have been reported in the wild, the vulnerability's presence in a widely used theming product could allow attackers to gather intelligence useful for further attacks, such as privilege escalation or targeted intrusions. The lack of a CVSS score indicates that the vulnerability is newly published and has not yet been fully assessed, but the nature of the data exposure suggests a significant confidentiality risk. The vulnerability affects all versions of Sober up to 3.5.11, with no specific affected versions listed beyond that. The vulnerability was reserved and published on December 9, 2025, by Patchstack, a known security entity focusing on WordPress and related ecosystems, which suggests that Sober is likely a theme or plugin used in web environments. Since the vulnerability allows unauthorized retrieval of sensitive information without authentication, it can be exploited remotely, increasing the attack surface. The absence of patches or mitigation links at the time of publication means organizations must be vigilant and seek updates from the vendor promptly.

For European organizations, the exposure of sensitive system information can have several adverse impacts. Confidentiality breaches may lead to the disclosure of system configurations, credentials, or other embedded secrets that attackers can leverage for lateral movement or privilege escalation. This can compromise the integrity and availability of systems if attackers use the information to deploy malware or disrupt services. Sectors such as finance, healthcare, government, and critical infrastructure are particularly at risk due to the sensitivity of their data and regulatory requirements like GDPR. The vulnerability could also undermine trust in affected organizations if exploited, leading to reputational damage and potential legal consequences. Since Sober is a theming product, organizations using it in public-facing websites or internal portals may inadvertently expose sensitive backend information. The lack of known exploits currently provides a window for proactive mitigation, but the ease of exploitation without authentication means the threat could escalate rapidly once exploit code becomes available. European organizations with limited patch management capabilities or those using outdated versions are at higher risk.

Organizations should immediately inventory their use of the uixthemes Sober product and identify any installations running version 3.5.11 or earlier. Until an official patch is released, restrict access to theme management interfaces to trusted administrators only, ideally through network segmentation or VPNs. Implement strict access controls and monitor logs for unusual access patterns or attempts to retrieve sensitive data from theme components. Employ web application firewalls (WAFs) with custom rules to detect and block suspicious requests targeting theme files or configuration endpoints. Regularly check vendor communications and security advisories for patches or updates addressing this vulnerability. Conduct security assessments and penetration tests focusing on theme and plugin components to identify similar weaknesses. Educate administrators about the risks of exposing sensitive information through themes and enforce the principle of least privilege. Finally, consider temporary removal or disabling of the Sober theme if it is not critical to operations until a fix is available.