CVE-2025-10110 is a medium-severity SQL Injection vulnerability affecting ChanCMS versions up to 3.3.1, specifically in an unknown function within the /search/ endpoint. The vulnerability arises from improper sanitization of user input, allowing an attacker to inject SQL code via crafted input such as '%20or%201=1%20%23/words.html'. This input manipulates the underlying SQL query logic, potentially bypassing intended query constraints. The vulnerability is remotely exploitable without authentication or user interaction, increasing its risk profile. The CVSS 4.0 vector indicates network attack vector (AV:N), low attack complexity (AC:L), no privileges required (PR:L), no user interaction (UI:N), and low impact on confidentiality, integrity, and availability (VC:L, VI:L, VA:L). Although the impact on data confidentiality, integrity, and availability is rated low, the ability to execute arbitrary SQL queries can lead to unauthorized data access, data modification, or denial of service depending on the database and application context. No official patches have been linked yet, and while no known exploits are currently in the wild, a public exploit is available, increasing the likelihood of exploitation. The vulnerability's presence in a CMS platform means that websites using ChanCMS for content management are at risk, potentially exposing sensitive data or allowing attackers to manipulate site content or user data.

For European organizations using ChanCMS versions 3.3.0 or 3.3.1, this vulnerability poses a significant risk to the confidentiality and integrity of their web applications and stored data. Exploitation could lead to unauthorized data disclosure, data tampering, or disruption of service, which could affect customer trust, regulatory compliance (e.g., GDPR), and operational continuity. Given that ChanCMS is a content management system, compromised sites could also be used to distribute malware or conduct phishing campaigns, amplifying the threat. The medium CVSS score reflects moderate risk, but the availability of a public exploit and the lack of required authentication increase the urgency for mitigation. Organizations in sectors with high data sensitivity, such as finance, healthcare, and government, are particularly vulnerable to reputational and legal consequences if exploited.

1. Immediate mitigation should include upgrading ChanCMS to a version beyond 3.3.1 once an official patch is released. Until then, organizations should implement strict input validation and sanitization on the /search/ endpoint to block malicious SQL payloads. 2. Employ Web Application Firewalls (WAFs) configured to detect and block SQL injection patterns, especially targeting the /search/ path. 3. Conduct thorough code reviews and penetration testing focused on SQL injection vectors in ChanCMS deployments. 4. Restrict database user permissions to the minimum necessary to limit the impact of any successful injection. 5. Monitor web server and database logs for suspicious query patterns indicative of SQL injection attempts. 6. Consider temporary disabling or restricting access to the vulnerable /search/ functionality if feasible. 7. Educate development and security teams about this vulnerability and ensure rapid response capabilities for any detected exploitation attempts.