How to fix CVE-2025-6699?

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

Is PHP affected by CVE-2025-6699?

CVE-2025-6699 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-2025-6699

EUVD-2025-19205 LOW

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

2025-06-26 [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 - 23:54 vuln.today

EUVD ID Assigned

Mar 15, 2026 - 23:54 euvd

EUVD-2025-19205

PoC Detected

Jul 01, 2025 - 15:42 vuln.today

Public exploit code

CVE Published

Jun 26, 2025 - 16:15 nvd

LOW 3.5

DescriptionNVD

A vulnerability classified as problematic has been found in LabRedesCefetRJ WeGIA 3.4.0. This affects an unknown part of the file /html/funcionario/cadastro_funcionario.php of the component Cadastro de Funcionário. The manipulation of the argument Nome/Sobrenome 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. This is a different issue than CVE-2025-23030. The vendor was contacted early about this disclosure but did not respond in any way.

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-2025-6699 vulnerability details – vuln.today

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