School Management System for Wordpress <= 56.0 - Cross-Site Request Forgery

2019-07-13 00:00

Strategic Overview

Status: Patched in 57.0
Affected Plugin: School Management System for Wordpress
Affected Version: < 57.0
CVSS: 8.8High
Weakness type: CWE-352 · Cross-Site Request Forgery (CSRF)
CVE: CVE pending

View all School Management System for Wordpress vulnerabilities

At a glance

This record tracks a high-severity Cross-Site Request Forgery (CSRF) vulnerability in the School Management System for Wordpress WordPress plugin, affecting versions < 57.0. It carries a CVSS score of 8.8 (reachable over the network; low attack complexity; high confidentiality, integrity, availability impact). Exploitation requires no authentication. The issue is fixed in version 57.0; sites on affected versions should update now. Disclosed July 2019, reported by m0ns7er.

Vulnerability Overview

The School Management System for Wordpress plugin for WordPress is vulnerable to Cross-Site Request Forgery in versions up to, and including, 56.0. This is due to missing or incorrect nonce validation. This makes it possible for unauthenticated attackers to inject malicious code via forged request granted they can trick a site administrator into performing an action such as clicking on a link.

Technical Analysis

The vector marks this flaw as remotely reachable over the network, with low attack complexity — no special timing or configuration is needed, and no privileges on the target site. A successful exploit has high impact on confidentiality, integrity, availability — full site compromise territory.

CWE-352: Cross-Site Request Forgery (CSRF)

Reaching this weakness in School Management System for Wordpress < 57.0 takes a caller who can reach the endpoint. Cross-site request forgery abuses the fact that browsers attach a victim's cookies to any request, so a state-changing action that only checks who you are, not whether you meant to act, can be triggered from another site.

An attacker who gets a logged-in user to load a crafted page can perform that action as them, with the impact scaling to whatever the victim's role is allowed to do. For School Management System for Wordpress the fix is 57.0: builds < 57.0 are affected, anything from 57.0 onward is not.

Remediation

Update to version 57.0, or a newer patched version

How does WordSec protect against this?

The attempt arrives as an ordinary request to School Management System for Wordpress: WordSec's web application firewall inspects request payloads before WordPress loads them. None of that substitutes for the fix: School Management System for Wordpress 57.0 closes this, and updating the plugin is the step that ends it.

Firewall
Alerts

External References

https://www.wordfence.com/threat-intel/vulnerabilities/id/9d2dde9f-c3c3-4e6e-a7e2-a0e511bff010

Related records

Other vulnerabilities in School Management System for Wordpress

CVSS Vector

8.8

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

Base

Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredNone
User InteractionRequired
ScopeUnchanged
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh

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