Is there a public PoC exploit available for CVE-2025-12280?

Yes, a public proof-of-concept exploit is available for CVE-2025-12280. Prioritise patching immediately. EPSS: 0.0%.

Client Details System CVE-2025-12280

Q: What is the CVSS score of CVE-2025-12280?

CVE-2025-12280 has a CVSS 4.0 base score of 1.9 (Low). CVSS vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:P/VC:N/VI:L/VA:N/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

Cross-site Scripting (XSS) (CWE-79)

2025-10-27 cna@vuldb.com

PHP XSS Client Details System Fabian

1.9

CVSS 4.0 · NVD

Severity by source

NVD PRIMARY

1.9 LOW

CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:P/VC:N/VI:L/VA:N/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

High

User Interaction

Scope

Lifecycle Timeline

Analysis Generated

Apr 29, 2026 - 02:32 vuln.today

DescriptionCVE.org

A vulnerability was found in code-projects Client Details System 1.0. This issue affects some unknown processing of the file /update-clients.php. Performing manipulation results in cross site scripting. It is possible to initiate the attack remotely. The exploit has been made public and could be used.

AnalysisAI

Cross-site scripting (XSS) in code-projects Client Details System 1.0 allows high-privileged authenticated users to inject malicious scripts via the /update-clients.php endpoint, requiring user interaction to execute. The vulnerability carries a low CVSS score of 1.9 due to high privilege requirements (PR:H) and mandatory user interaction (UI:P), but publicly available exploit code exists, making it actionable for insider threats or social engineering scenarios targeting administrators.

Technical ContextAI

The vulnerability is a reflected or stored cross-site scripting (CWE-79) flaw in a PHP-based client management application. The /update-clients.php endpoint fails to properly sanitize or encode user-supplied input before rendering it in HTTP responses, allowing an attacker to inject arbitrary JavaScript code. The affected product is a custom web application (CPE: cpe:2.3:a:fabian:client_details_system:1.0) used for managing client details. XSS vulnerabilities of this class typically arise from inadequate output encoding or input validation in server-side rendering contexts, enabling attackers to execute scripts in victims' browsers under the application's security context.

RemediationAI

No vendor-released patch identified at time of analysis. Immediate remediation requires upgrading to a patched version if the vendor (code-projects/Fabian) has released one; consult the project repository at https://code-projects.org/ for update availability. If no patch is available, implement compensating controls: (1) Apply strict input validation and HTML entity encoding to all user inputs in /update-clients.php, specifically encoding special characters (<, >, ", ') before rendering in HTML context; (2) Implement Content Security Policy (CSP) headers (e.g., default-src 'self'; script-src 'self') to restrict inline script execution; (3) Restrict administrative access to /update-clients.php via IP whitelisting or VPN gating, reducing the user population capable of triggering the vulnerability; (4) Enable HTTP-only and secure flags on session cookies to prevent script-based session theft. These controls mitigate the XSS payload execution at the cost of reduced administrative flexibility and require ongoing monitoring for bypass techniques.