CVE-2023-3677

WooCommerce PDF Invoice Builder <= 1.2.89 - Authenticated (Subscriber+) SQL Injection via Export

2023-08-11 00:00
Marco Wotschka

Strategic Overview

Status
Patched in 1.2.90
Affected Plugin
PDF Builder for WooCommerce. Create invoices,packing slips and more
Affected Version
<= 1.2.89
CVSS
8.8High
Weakness type
CWE-89 · Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')
CVE
CVE-2023-3677
View all PDF Builder for WooCommerce. Create invoices,packing slips and more vulnerabilities

At a glance

CVE-2023-3677 is a high-severity Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection') vulnerability in the PDF Builder for WooCommerce. Create invoices,packing slips and more WordPress plugin, affecting versions <= 1.2.89. It carries a CVSS score of 8.8 (reachable over the network; low attack complexity; high confidentiality, integrity, availability impact). Exploitation requires an authenticated account at Subscriber level or above. The issue is fixed in version 1.2.90; sites on affected versions should update now. Disclosed August 2023, reported by Marco Wotschka.

Vulnerability Overview

The WooCommerce PDF Invoice Builder plugin for WordPress is vulnerable to SQL Injection via the pageId parameter in versions up to, and including, 1.2.89 due to insufficient escaping on the user supplied parameter and lack of sufficient preparation on the existing SQL query. This makes it possible for subscribers or higher 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 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 PDF Builder for WooCommerce. Create invoices,packing slips and more <= 1.2.89 takes an account at Subscriber level or above. 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 PDF Builder for WooCommerce. Create invoices,packing slips and more the fix is 1.2.90: builds <= 1.2.89 are affected, anything from 1.2.90 onward is not.

Remediation

Update to version 1.2.90, or a newer patched version

How does WordSec protect against this?

An attacker needs Subscriber access first, so the firewall sees the attempt as traffic from a logged-in account: WordSec's web application firewall inspects request payloads before WordPress loads them. None of that substitutes for the fix: PDF Builder for WooCommerce. Create invoices,packing slips and more 1.2.90 closes this, and updating the plugin is the step that ends it.

  • Firewall
  • Alerts

External References

https://www.cve.org/CVERecord?id=CVE-2023-3677https://www.wordfence.com/threat-intel/vulnerabilities/id/4336d597-7e87-46eb-8abd-9fafd6cd25d9https://nvd.nist.gov/vuln/detail/CVE-2023-3677

Related records

Vulnerability data © Defiant, Inc., provided under the Wordfence Intelligence T&C