CVE Alert: CVE-2025-12307 – code-projects – Nero Social Networking Site

Risk verdict

Urgent: remote SQL injection with a publicly available PoC makes data exposure and site disruption plausible; high-priority remediation required.

Why this matters

The vulnerability enables unauthenticated remote access to the backend database via /addfriend.php, risking data leakage, integrity loss, or manipulation of user relationships. If the DB is compromised, attackers could escalate further or pivot to other systems, with potential regulatory and reputational consequences for the organisation.

Most likely attack path

An attacker records a crafted ID parameter in a network request to addfriend.php, triggering a SQL injection due to insufficient input handling. With AV:N, PR:N, UI:N, and AC:L, no user interaction or authentication is needed, enabling automatic exploitation over the network. The attack can lead to data disclosure or modification, and may enable broader exploitation if the database or app logic is poorly isolated; the UI and scope remain unchanged unless additional flaws are present.

Who is most exposed

Public, PHP/MySQL-based Nero Social Networking Site deployments are at greatest risk, especially those hosted on shared or loosely segmented environments with minimal input validation around user-generated actions.

Detection ideas

• Web server logs show unusual, crafted ID values targeting addfriend.php
• DB logs reveal anomalous or malformed SQL queries from web app users
• Spikes of errors or unusual data access patterns around the addfriend.php endpoint
• IDS/IPS alerts for classic SQLi payloads or unusual UNION/SELECT constructs
• Unexpected changes in friendships or user records correlating with unusual activity

Mitigation and prioritisation

• Apply available patch or upgrade to fixed version; implement parameterised queries and prepared statements
• Implement input validation and proper ORM/DB access controls; disable or tightly restrict addfriend functionality if feasible
• Deploy WAF rules to block SQL injection patterns; tighten DB user privileges (least privilege)
• Review and harden server configs, error handling, and logging to reduce information leakage
• Change-management: schedule emergency patch/test in staging, monitor post-deployment for anomalous activity
• Given the public PoC, treat as high-priority; coordinate with SOC for early detection and response.