Is this vulnerability remotely exploitable?

Yes. As long as the `/viva/update.php` endpoint is reachable over the network, a remote attacker can attempt to exploit the authorization weakness by sending crafted POST requests, even from outside the organization if the application is Internet-facing.

What level of access does an attacker need?

The exact requirement depends on deployment configuration. In many authorization flaws, either no login is needed (if the endpoint is exposed without authentication) or a low-privileged account is sufficient to escalate and perform actions meant for more privileged roles or other users.

What is the safest general fix pattern?

Implement consistent, server-side authorization checks for all update operations: derive user identity from a secure session or token, enforce role and ownership checks before processing the request, and ensure client-supplied parameters cannot expand a user's access beyond their assigned scope.

Severity:

HIGH RISK

(7.3)

Improper Authorization (CWE-285) in Cyber-III Student-Management-System viva/update.php

CVE-2026-5642

Published:

Apr 6, 2026

Status:

Received

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-77;CWE-78

HIGH RISK

HIGH

(7.3)

OS Command Injection (CWE-78) in Totolink A7100RU setGameSpeedCfg CGI Handler

Remote Code Execution on the Router

April 6, 2026

CWE-77;CWE-78

HIGH RISK

HIGH

(7.3)

OS Command Injection (CWE-78) in Totolink A7100RU setFirewallType Handler

Remote Code Execution on Router Firmware

April 6, 2026

Vulnerability Type

Category:

Improper Authorization

CWE:

CWE-266;CWE-285

Impact:

Privilege Escalation / Unauthorized Data Modification

Severity:

HIGH RISK

(7.3)

CVSS Version:

3.1

Vulnerability Type

Category:

Improper Authorization

CWE:

CWE-266;CWE-285

Impact:

Privilege Escalation / Unauthorized Data Modification

Severity:

HIGH RISK

(7.3)

CVSS Version:

3.1

Catch This CVE While Code Is Being Written

Detect vulnerable code directly in pull requests, so CVEs are fixed before merge.

Get Started

Ship clean & secure code faster

START 14 DAYS FREE TRIAL

BOOK A DEMO

Made with Love in San Francisco

355 Bryant St. San Francisco, CA 94107, USA

Ask AI for summary of CodeAnt

Made with Love in San Francisco

355 Bryant St. San Francisco, CA 94107, USA

Ask AI for summary of CodeAnt

Made with Love in San Francisco

355 Bryant St. San Francisco, CA 94107, USA

Ask AI for summary of CodeAnt

Improper Authorization (CWE-285) in Cyber-III Student-Management-System viva/update.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

(7.3)

OS Command Injection (CWE-78) in Totolink A7100RU setGameSpeedCfg CGI Handler

HIGH RISK

HIGH

(7.3)

OS Command Injection (CWE-78) in Totolink A7100RU setFirewallType Handler

Vulnerability Type

Vulnerability Type

Vulnerability Type

Catch This CVE While Code Is Being Written

Ship clean & secure code faster

Product

Pricing

Company

Legal

Developers

Compare

Product

Pricing

Company

Legal

Developers

Compare

Product

Pricing

Company

Legal

Developers

Compare