Is there a public PoC exploit available for CVE-2025-12256?

Yes, a public proof-of-concept exploit is available for CVE-2025-12256. Prioritise patching immediately. EPSS: 0.0%.

Online Event Judging System CVE-2025-12256

Q: What is the CVSS score of CVE-2025-12256?

CVE-2025-12256 has a CVSS 4.0 base score of 2.1 (Low). CVSS vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X. EPSS exploitation probability: 0.0%.

LOW

Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection') (CWE-74)

2025-10-27 cna@vuldb.com

PHP SQLi Online Event Judging System Carmelo

2.1

CVSS 4.0 · NVD

Severity by source

NVD PRIMARY

2.1 LOW

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Lifecycle Timeline

Analysis Generated

Apr 29, 2026 - 02:31 vuln.today

DescriptionCVE.org

A weakness has been identified in code-projects Online Event Judging System 1.0. This vulnerability affects unknown code of the file /edit_contestant.php. Executing manipulation of the argument contestant_id can lead to sql injection. The attack can be executed remotely. The exploit has been made available to the public and could be exploited.

AnalysisAI

SQL injection in code-projects Online Event Judging System 1.0 allows authenticated remote attackers to manipulate the contestant_id parameter in /edit_contestant.php, resulting in limited confidentiality, integrity, and availability impact. The vulnerability has a publicly available exploit and low EPSS score (0.03%), suggesting it poses minimal real-world risk despite public exploit availability.

Technical ContextAI

The vulnerability is a SQL injection flaw (CWE-74: Improper Neutralization of Special Elements used in an Output) in a PHP-based web application. The /edit_contestant.php file accepts user-supplied input via the contestant_id parameter without proper sanitization or parameterized queries, allowing attackers to inject arbitrary SQL commands. This affects the Online Event Judging System, a PHP web application designed for contest management. The attack vector is network-based, but requires valid authentication (PR:L in CVSS vector indicates low-privilege authenticated access).

RemediationAI

Apply a vendor patch if available from code-projects (check https://code-projects.org/ for updates beyond version 1.0). If no patched version is available, implement immediate compensating controls: (1) Use parameterized SQL queries (prepared statements) in /edit_contestant.php to neutralize SQL injection, (2) Implement input validation/whitelist for contestant_id to accept only numeric values, (3) Apply Web Application Firewall (WAF) rules to detect and block SQL injection patterns in the contestant_id parameter, (4) Restrict access to the /edit_contestant.php endpoint to trusted administrative networks via IP allowlist if possible. The authentication requirement (PR:L) means unauthorized remote exploitation is not possible, so access control hardening is an effective interim control. Web application code review and security testing of all user-input handling in the application should be prioritized.