Which versions of Chat System are affected by CVE-2025-5881?

Organizations using code-projects Chat System should be aware of moderate risk from CVE-2025-5881, a injection vulnerability rated CVSS 6.3.

Is there a public PoC exploit available for CVE-2025-5881?

Yes, a public proof-of-concept exploit is available for CVE-2025-5881. Prioritise patching immediately. EPSS: 0.1%.

How to fix or mitigate CVE-2025-5881?

Within 30 days: Identify affected systems running code-projects Chat System and apply vendor patches as part of regular patch cycle. Validate input sanitization for user-controlled parameters.

Chat System CVE-2025-5881

Q: What is the CVSS score of CVE-2025-5881?

CVE-2025-5881 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: 0.1%.

EUVD-2025-17474 LOW

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

2025-06-09 cna@vuldb.com

PHP SQLi Chat System Fabian

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

vuln.today AI

5.4 MEDIUM

PR:L due to authentication requirement; C:L/I:L as SQLi can read/write data but not full system compromise.

3.1 AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N

4.0 AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N

Primary rating from NVD.

CVSS VectorNVD

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Lifecycle Timeline

Severity Changed

Apr 29, 2026 - 01:11 NVD

MEDIUM LOW

CVSS changed

Apr 29, 2026 - 01:11 NVD

6.3 (MEDIUM) 2.1 (LOW)

EUVD ID Assigned

Mar 14, 2026 - 19:21 euvd

EUVD-2025-17474

Analysis Generated

Mar 14, 2026 - 19:21 vuln.today

PoC Detected

Oct 23, 2025 - 20:06 vuln.today

Public exploit code

CVE Published

Jun 09, 2025 - 14:15 cve.org

LOW 2.1

CVE Published

Jun 09, 2025 - 14:15 nvd

MEDIUM 6.3

DescriptionCVE.org

A vulnerability was found in code-projects Chat System up to 1.0 and classified as critical. This issue affects some unknown processing of the file /user/confirm_password.php. The manipulation of the argument cid leads to sql injection. The attack may be initiated remotely. The exploit has been disclosed to the public and may be used.

AnalysisAI

SQL injection in code-projects Chat System 1.0 allows remote authenticated attackers to manipulate the cid parameter in /user/confirm_password.php, potentially leading to data leakage or modification. A public exploit exists, but no active exploitation has been confirmed.

Technical ContextAI

The vulnerability is a SQL injection (CWE-74) in a PHP-based chat application. The affected endpoint /user/confirm_password.php processes the cid argument without proper sanitization, allowing an attacker to inject SQL commands. The CPE indicates the product is Chat System version 1.0 by Fabian.

RemediationAI

No vendor-released patch identified at time of analysis. As a workaround, sanitize and parameterize the cid input in /user/confirm_password.php to prevent SQL injection. Alternatively, restrict access to this endpoint to trusted users only. Note that these mitigations may break functionality if not implemented carefully.