CVE-2025-12082 is an incorrect authorization vulnerability classified under CWE-863 affecting the Drupal CivicTheme Design System, specifically versions from 0.0.0 up to but not including 1.12.0. The flaw permits forceful browsing, whereby an attacker can bypass authorization checks and access restricted resources or pages that should be protected. This vulnerability is remotely exploitable without requiring authentication or user interaction, as indicated by the CVSS vector (AV:N/AC:L/PR:N/UI:N). The impact is primarily on confidentiality, allowing unauthorized disclosure of sensitive information, while integrity and availability remain unaffected. The vulnerability arises from improper enforcement of access control policies within the CivicTheme Design System, a component used to build Drupal-based websites with specific theming and design capabilities. Although no public exploits have been reported yet, the low complexity of exploitation and the lack of required privileges make this a critical concern for organizations relying on affected versions. The vulnerability was published on October 29, 2025, and no official patches or updates were listed at the time of reporting, emphasizing the need for vigilance and proactive mitigation.

For European organizations, this vulnerability poses a significant risk of unauthorized data exposure, especially for entities using Drupal CivicTheme Design System in their public-facing or internal web applications. Confidential information, including user data, internal documents, or proprietary content, could be accessed by attackers without authentication. This could lead to privacy violations under GDPR, reputational damage, and potential regulatory penalties. The vulnerability's remote and unauthenticated exploitability increases the attack surface, making it attractive for opportunistic attackers and advanced persistent threats targeting European institutions, government websites, and enterprises. The lack of impact on integrity and availability reduces the risk of service disruption or data manipulation but does not diminish the severity of confidentiality breaches. Organizations in sectors such as finance, healthcare, and public administration are particularly vulnerable due to the sensitivity of their data and the widespread use of Drupal in these sectors.

1. Immediately inventory all Drupal installations to identify the use of the CivicTheme Design System and its version. 2. Apply updates to CivicTheme Design System version 1.12.0 or later as soon as they become available from Drupal to remediate the authorization flaw. 3. Until patches are applied, implement strict web server or application-level access controls to restrict access to sensitive resources, including IP whitelisting or VPN-only access where feasible. 4. Conduct thorough access control audits and penetration testing focusing on forceful browsing attempts to identify and remediate similar authorization weaknesses. 5. Monitor web server logs and intrusion detection systems for unusual access patterns indicative of forceful browsing or unauthorized resource access. 6. Educate development and security teams about secure authorization practices and the risks of improper access control enforcement. 7. Consider deploying web application firewalls (WAFs) with custom rules to block suspicious URL patterns or unauthorized access attempts targeting CivicTheme components.