CVE-2021-4134

Fancy Product Designer <= 4.7.4 - Admin+ SQL Injection

2022-02-08 00:00

Strategic Overview

Status: Patched in 4.7.5
Affected Plugin: Fancy Product Designer
Affected Version: <= 4.7.4
CVSS: 7.2High
Weakness type: CWE-89 · Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')
CVE: CVE-2021-4134

View all Fancy Product Designer vulnerabilities

At a glance

CVE-2021-4134 is a high-severity Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection') vulnerability in the Fancy Product Designer WordPress plugin, affecting versions <= 4.7.4. It carries a CVSS score of 7.2 (reachable over the network; low attack complexity; high confidentiality, integrity, availability impact). The issue is fixed in version 4.7.5; sites on affected versions should update now. Disclosed February 2022, reported by Lin Yu.

Vulnerability Overview

The Fancy Product Designer WordPress plugin is vulnerable to SQL Injection due to insufficient escaping and parameterization of the ID parameter found in the ~/inc/api/class-view.php file which allows attackers with administrative level permissions to inject arbitrary SQL queries to obtain sensitive information, in versions up to and including 4.7.4.

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 interaction from a victim user. A successful exploit has high impact on confidentiality, integrity, availability — full site compromise territory.

CWE-89: Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')

Reaching this weakness in Fancy Product Designer <= 4.7.4 takes a caller who can reach the endpoint. SQL injection happens when request data is concatenated into a query instead of being bound as a parameter, letting an attacker change the structure of the statement rather than just its values.

A working injection can read any table the database user can see, which on a WordPress install means user records, password hashes and session or API secrets stored in options. For Fancy Product Designer the fix is 4.7.5: builds <= 4.7.4 are affected, anything from 4.7.5 onward is not.

Remediation

Update to version 4.7.5, or a newer patched version

How does WordSec protect against this?

The attempt arrives as an ordinary request to Fancy Product Designer: WordSec's web application firewall inspects request payloads before WordPress loads them. None of that substitutes for the fix: Fancy Product Designer 4.7.5 closes this, and updating the plugin is the step that ends it.

Firewall
Alerts

External References

https://www.cve.org/CVERecord?id=CVE-2021-4134 https://www.wordfence.com/threat-intel/vulnerabilities/id/17dd97b6-a186-4351-b08b-1eff696e25b1 https://nvd.nist.gov/vuln/detail/CVE-2021-4134

Related records

Same weakness class

Other vulnerabilities in Fancy Product Designer

CVSS Vector

7.2

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

Base

Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredHigh
User InteractionNone
ScopeUnchanged
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh

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