CVE-2025-3979 is a Cross-Site Request Forgery (CSRF) vulnerability identified in version 3.0.3 of the dazhouda lecms product, specifically affecting the Password Change Handler component accessible via the /index.php?my-password-ajax-1 endpoint. CSRF vulnerabilities allow an attacker to trick an authenticated user into submitting unwanted actions to a web application in which they are currently authenticated. In this case, the vulnerability enables remote attackers to initiate unauthorized password change requests without requiring prior authentication or elevated privileges. The vulnerability is classified as 'problematic' with a CVSS 4.0 base score of 5.3 (medium severity), indicating moderate impact. The attack vector is network-based (AV:N), requiring no privileges (PR:N) and no authentication (AT:N), but does require user interaction (UI:P), such as the victim clicking a malicious link or visiting a crafted webpage. The vulnerability impacts the integrity of user accounts by allowing unauthorized password changes, potentially leading to account takeover or denial of service for legitimate users. However, it does not directly affect confidentiality or availability of the system. No known exploits are currently observed in the wild, and no patches or mitigations have been officially published at the time of disclosure. The vulnerability affects only version 3.0.3 of lecms, suggesting that other versions may not be vulnerable or have not been assessed. Given the nature of CSRF, the vulnerability exploits the trust a web application places in the user's browser, and the lack of anti-CSRF tokens or proper validation in the password change handler is likely the root cause. Attackers can craft malicious web pages or emails that, when visited or clicked by authenticated users, trigger unauthorized password changes silently in the background.

For European organizations using dazhouda lecms 3.0.3, this vulnerability poses a moderate risk primarily to user account integrity. Successful exploitation can lead to unauthorized password changes, enabling attackers to hijack accounts or lock out legitimate users, disrupting normal operations. This can be particularly damaging for organizations relying on lecms for content management or internal portals, as compromised accounts may lead to further privilege escalation or data manipulation. Although confidentiality and availability impacts are limited, the integrity breach can undermine trust in the affected systems and potentially facilitate subsequent attacks. The requirement for user interaction means social engineering or phishing campaigns could be leveraged to exploit this vulnerability. Organizations with high-value or sensitive user accounts are at greater risk, especially if lecms is integrated with other critical systems. The lack of known exploits in the wild reduces immediate threat but does not eliminate future risk, especially after public disclosure. The medium severity rating suggests that while the vulnerability is not critical, it should be addressed promptly to prevent account compromise and maintain operational security.

1. Immediate mitigation should include implementing anti-CSRF tokens or synchronizer tokens in the password change handler to validate legitimate requests. 2. Enforce strict referer or origin header checks on sensitive endpoints to ensure requests originate from trusted sources. 3. Require re-authentication or multi-factor authentication (MFA) before allowing password changes to add an additional security layer. 4. Monitor logs for unusual password change activities, especially those initiated without corresponding user actions. 5. Educate users about phishing and social engineering risks to reduce the likelihood of user interaction exploitation. 6. If possible, upgrade to a non-vulnerable version of lecms or apply vendor patches once available. 7. Employ Content Security Policy (CSP) headers to restrict the execution of unauthorized scripts that could facilitate CSRF attacks. 8. Disable or limit the use of the vulnerable password change AJAX endpoint until a fix is applied. 9. Conduct regular security assessments and penetration testing focused on CSRF and session management vulnerabilities. These steps go beyond generic advice by focusing on the specific vulnerable component and practical controls that can be implemented immediately.