Is this vulnerability remotely exploitable?

Yes. The vulnerable `/login.php` endpoint is typically exposed over the network, allowing attackers to send crafted requests containing malicious `User` parameter values.

What level of access does an attacker need to exploit this?

Only network access to the login page is generally required; no prior authentication is necessary if the login form is publicly available.

What is the safest general fix pattern for this issue?

Refactor all affected queries to use parameterized statements or prepared queries, ensuring that user input is always bound as data rather than concatenated into SQL strings. Combine this with restrictive database privileges.

Severity:

HIGH RISK

(7.3)

SQL Injection via User Parameter (CWE-89) in Online Notes Sharing System /login.php

CVE-2026-4540

Published:

Mar 22, 2026

Status:

Deferred

Summary

Affected Context

Exploit Preconditions

Why This Happens

Potential Impact

General Mitigation Guidance

How Teams Detect Issues Like This

Frequently Asked Questions

Source

NDV

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Vulnerability Type

Category:

SQL Injection

CWE:

CWE-74;CWE-89

Impact:

Authentication Bypass and Data Exposure via SQL Injection

Severity:

HIGH RISK

(7.3)

CVSS Version:

3.1

Vulnerability Type

Category:

SQL Injection

CWE:

CWE-74;CWE-89

Impact:

Authentication Bypass and Data Exposure via SQL Injection

Severity:

HIGH RISK

(7.3)

CVSS Version:

3.1

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SQL Injection via User Parameter (CWE-89) in Online Notes Sharing System /login.php

Summary

Affected Context

Exploit Preconditions

Why This Happens

Potential Impact

General Mitigation Guidance

How Teams Detect Issues Like This

Frequently Asked Questions

Source

Recent Vulnerabilities

HIGH RISK

HIGH

(8.6)

Server-Side Request Forgery (CWE-918) in OpenClaw Zalo Plugin sendPhoto

HIGH RISK

HIGH

(8.8)

Authorization Bypass (CWE-863) in OpenClaw Matrix Room Control Commands

Vulnerability Type

Vulnerability Type

Vulnerability Type

Catch This CVE While Code Is Being Written

Ship clean & secure code faster

Ship clean & secure code faster

Ship clean & secure code faster

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