Which versions of PHP are affected by CVE-2025-4470?

Organizations using A vulnerability classified as problematic should be aware of moderate risk from CVE-2025-4470, a cross-site scripting vulnerability rated CVSS 4.8.

Is there a public PoC exploit available for CVE-2025-4470?

Yes, a public proof-of-concept exploit is available for CVE-2025-4470. Prioritise patching immediately. EPSS: 0.2%.

How to fix or mitigate CVE-2025-4470?

Within 30 days: Identify affected systems and apply vendor patches as part of regular patch cycle. Verify Content-Security-Policy and output encoding.

PHP CVE-2025-4470

Q: What is the CVSS score of CVE-2025-4470?

CVE-2025-4470 has a CVSS 4.0 base score of 4.8 (Medium). 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:X/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: 0.2%.

MEDIUM

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

2025-05-09 cna@vuldb.com

PHP XSS Online Student Clearance System

4.8

CVSS 4.0 · NVD

Severity by source

NVD PRIMARY

4.8 MEDIUM

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:X/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

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:X/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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

High

User Interaction

Scope

Lifecycle Timeline

Analysis Generated

Mar 28, 2026 - 18:41 vuln.today

PoC Detected

May 14, 2025 - 20:55 vuln.today

Public exploit code

CVE Published

May 09, 2025 - 07:16 nvd

MEDIUM 4.8

DescriptionCVE.org

A vulnerability classified as problematic was found in SourceCodester Online Student Clearance System 1.0. Affected by this vulnerability is an unknown functionality of the file /admin/add-student.php. The manipulation of the argument Fullname leads to cross site scripting. The attack can be launched remotely. The exploit has been disclosed to the public and may be used. Other parameters might be affected as well.

AnalysisAI

A vulnerability classified as problematic was found in SourceCodester Online Student Clearance System 1.0. Rated medium severity (CVSS 4.8), this vulnerability is remotely exploitable, low attack complexity. Public exploit code available and no vendor patch available.

Technical ContextAI

This vulnerability is classified as Cross-Site Scripting (XSS) (CWE-79), which allows attackers to inject malicious scripts into web pages viewed by other users. A vulnerability classified as problematic was found in SourceCodester Online Student Clearance System 1.0. Affected by this vulnerability is an unknown functionality of the file /admin/add-student.php. The manipulation of the argument Fullname leads to cross site scripting. The attack can be launched remotely. The exploit has been disclosed to the public and may be used. Other parameters might be affected as well. Affected products include: Senior-Walter Online Student Clearance System.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Sanitize all user input, use Content-Security-Policy headers, encode output contextually (HTML, JS, URL). Use frameworks with built-in XSS protection.

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CVE-2025-4470 vulnerability details – vuln.today

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PHP CVE-2025-4470

Severity by source

CVSS VectorNVD

Lifecycle Timeline

DescriptionCVE.org

AnalysisAI

Technical ContextAI

RemediationAI

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External POC / Exploit Code