Is this vulnerability remotely exploitable?

Yes. The vulnerable parameter is exposed via web requests, so an attacker can exploit it remotely by sending crafted HTTP requests, subject to whatever authentication or access control is enforced around the endpoint.

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

The attacker needs the ability to reach and interact with the affected script that processes difficulty_id. In some deployments this may require authenticated access to administrative or instructor interfaces; in others it may be reachable with lower or no authentication, depending on configuration.

What is the safest general fix pattern for this issue?

The most robust fix is to refactor all affected queries to use prepared statements with bound parameters, combined with strict validation of difficulty_id as a constrained, expected type (for example, an integer within a known range). Removing all dynamic SQL concatenation of user input is key.

Severity:

HIGH RISK

(7.3)

SQL Injection (CWE-89) via difficulty_id in Online Reviewer System btn_functions.php

CVE-2026-2220

Published:

Feb 9, 2026

Status:

Analyzed

Summary

Affected Context

Exploit Preconditions

Why This Happens

Potential Impact

General Mitigation Guidance

How Teams Detect Issues Like This

Frequently Asked Questions

Source

NDV

Recent Vulnerabilities

CWE-306

CRITICAL RISK

CRITICAL

(9.8)

Missing Authentication for Forgot-Password Email Change API (CWE-306)

Account Takeover / Loss of Account Control

February 17, 2026

CWE-77;CWE-78

HIGH RISK

HIGH

(7.3)

OS Command Injection (CWE-78) in node-sonos-http-api TTS Provider for macOS

Remote Code Execution on the Server Host

February 17, 2026

Vulnerability Type

Category:

SQL Injection

CWE:

CWE-74;CWE-89

Impact:

Unauthorized Database Access and Manipulation

Severity:

HIGH RISK

(7.3)

CVSS Version:

3.1

Vulnerability Type

Category:

SQL Injection

CWE:

CWE-74;CWE-89

Impact:

Unauthorized Database Access and Manipulation

Severity:

HIGH RISK

(7.3)

CVSS Version:

3.1

Catch This CVE While Code Is Being Written

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Made with Love in San Francisco

355 Bryant St. San Francisco, CA 94107, USA

Ask AI for summary of CodeAnt

SQL Injection (CWE-89) via difficulty_id in Online Reviewer System btn_functions.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

CRITICAL RISK

CRITICAL

(9.8)

Missing Authentication for Forgot-Password Email Change API (CWE-306)

HIGH RISK

HIGH

(7.3)

OS Command Injection (CWE-78) in node-sonos-http-api TTS Provider for macOS

Vulnerability Type

Vulnerability Type

Vulnerability Type

Vulnerability Type

Catch This CVE While Code Is Being Written

Ship clean & secure code faster

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