CVE-2025-52392: 
PHP vulnerability analysis and mitigation

CVE-2025-52392 affects Soosyze CMS version 2.0, specifically the authentication mechanism at the /user/login endpoint. The vulnerability was discovered and disclosed on August 13, 2025. This security flaw allows brute-force login attacks due to missing rate-limiting and lockout mechanisms, enabling attackers to repeatedly submit login attempts without restrictions (NVD, Beafn28 Advisory).

The vulnerability is classified as CWE-307 (Improper Restriction of Excessive Authentication Attempts) with a CVSS v3.1 Base Score of 5.4 (Medium). The attack vector is network-based (AV:N) with low complexity (AC:L), requiring no privileges (PR:N) but user interaction (UI:R). The scope remains unchanged (S:U) with low impact on confidentiality (C:L) and integrity (I:L), and no impact on availability (A:N) (NVD).

Successful exploitation of this vulnerability can lead to unauthorized access to valid user accounts, potential administrative takeover if admin credentials are compromised, and subsequent unauthorized access to protected content with the possibility of malicious configuration or content injection (Beafn28 Advisory).

Recommended mitigations include implementing server-side rate limiting (maximum 5 failed attempts per minute per IP), applying temporary account lockout after multiple failed attempts, introducing CAPTCHA or other bot-mitigation mechanisms, and implementing logging and monitoring of repeated failed authentication attempts (Beafn28 Advisory).

The issue was reported through GitHub issue #269, highlighting the security concern about continuous attack possibilities and potential compromise of admin credentials (GitHub Issue).