CVE-2023-28662

Gift Cards (Gift Vouchers and Packages) <= 4.3.2 - Unauthenticated SQL Injection

2023-03-29 00:00

Strategic Overview

Status: Patched in 4.3.3
Affected Plugin: Gift Cards (Gift Vouchers and Packages) (WooCommerce Supported)
Affected Version: <= 4.3.2
CVSS: 9.8Critical
Weakness type: CWE-89 · Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')
CVE: CVE-2023-28662

View all Gift Cards (Gift Vouchers and Packages) (WooCommerce Supported) vulnerabilities

At a glance

CVE-2023-28662 is a critical-severity Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection') vulnerability in the Gift Cards (Gift Vouchers and Packages) (WooCommerce Supported) WordPress plugin, affecting versions <= 4.3.2. It carries a CVSS score of 9.8 (reachable over the network; low attack complexity; high confidentiality, integrity, availability impact). Exploitation requires no authentication. The issue is fixed in version 4.3.3; sites on affected versions should update now. Disclosed March 2023, reported by Joshua Martinelle.

Vulnerability Overview

The Gift Cards (Gift Vouchers and Packages) plugin for WordPress is vulnerable to SQL Injection via the 'template' parameter of the wpgv_doajax_voucher_pdf_save_func AJAX action in versions up to, and including, 4.3.2 due to insufficient escaping on the user supplied parameter and lack of sufficient preparation on the existing SQL query. This makes it possible for unauthenticated attackers to append additional SQL queries into already existing queries that can be used to extract sensitive information from the database.

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, 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')

Gift Cards (Gift Vouchers and Packages) (WooCommerce Supported) <= 4.3.2 carries this weakness at template, and reaching it takes no account at all. 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 Gift Cards (Gift Vouchers and Packages) (WooCommerce Supported) the fix is 4.3.3: builds <= 4.3.2 are affected, anything from 4.3.3 onward is not.

Remediation

Update to version 4.3.3, or a newer patched version

How does WordSec protect against this?

Requests carrying this pattern arrive without a session, so nothing upstream of the firewall gets a chance to reject them: WordSec's web application firewall inspects request payloads before WordPress loads them. None of that substitutes for the fix: Gift Cards (Gift Vouchers and Packages) (WooCommerce Supported) 4.3.3 closes this, and updating the plugin is the step that ends it.

Firewall
Login Security
Alerts

External References

https://www.cve.org/CVERecord?id=CVE-2023-28662 https://www.wordfence.com/threat-intel/vulnerabilities/id/a10a3f01-082d-4a94-89c6-b5b46891aa4d https://nvd.nist.gov/vuln/detail/CVE-2023-28662

Related records

Same weakness class

9.8CVE-2018-16159: Gift Cards SQL InjectionCVE-2018-16159

Other vulnerabilities in Gift Cards (Gift Vouchers and Packages) (WooCommerce Supported)

CVSS Vector

9.8

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

Base

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

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