How to fix CVE-2025-6340?

During next maintenance window: Apply vendor patches when convenient. Verify cross-site scripting controls are in place.

Is PHP affected by CVE-2025-6340?

CVE-2025-6340 is a low-severity vulnerability in A vulnerability classified as problematic involving cross-site scripting (CVSS 3.5). The limited severity suggests constrained impact, typically requiring specific conditions or local access for exploitation.

PHP CVE-2025-6340

EUVD-2025-18740 LOW

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

2025-06-20 [email protected]

PHP XSS

3.5

CVSS 3.1

CVSS VectorNVD

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

Required

Scope

Unchanged

Confidentiality

None

Integrity

Low

Availability

None

Lifecycle Timeline

Analysis Generated

Mar 15, 2026 - 00:19 vuln.today

EUVD ID Assigned

Mar 15, 2026 - 00:19 euvd

EUVD-2025-18740

PoC Detected

Jun 26, 2025 - 18:16 vuln.today

Public exploit code

CVE Published

Jun 20, 2025 - 13:15 nvd

LOW 3.5

DescriptionNVD

A vulnerability classified as problematic has been found in code-projects School Fees Payment System 1.0. This affects an unknown part of the file /branch.php. The manipulation of the argument Branch/Address/Detail leads to cross site scripting. It is possible to initiate the attack remotely. The exploit has been disclosed to the public and may be used.

Analysis

Technical ContextAI

Cross-site scripting (XSS) allows injection of client-side scripts into web pages viewed by other users due to insufficient output encoding.

RemediationAI

Encode all user-supplied output contextually (HTML, JS, URL). Implement Content Security Policy (CSP) headers. Use HTTPOnly and Secure cookie flags.

CVE-2025-6340 vulnerability details – vuln.today

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