What’s Vulnerable › Vulnerabilities

CVE-2024-1773: PDF Invoices and Packing Slips For WooCommerce <= 1.3.7 - Authenticated (Subscriber+) PHP Object Injection

• Severity: high (CVSS 8.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.0% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2024-03-07 · updated 2026-06-17
• Weakness: CWE-502

Description

The PDF Invoices and Packing Slips For WooCommerce plugin for WordPress is vulnerable to PHP Object Injection in all versions up to, and including, 1.3.7 via deserialization of untrusted input via the order_id parameter. This makes it possible for authenticated attackers, with subscriber-level access and above, to inject a PHP Object. No known POP chain is present in the vulnerable plugin. If a POP chain is present via an additional plugin or theme installed on the target system, it could allow the attacker to delete arbitrary files, retrieve sensitive data, or execute code.

Affected products

• acowebs PDF Invoices and Packing Slips For WooCommerce: before 1.3.8 — fixed in 1.3.8

How to fix

Upgrade to a fixed version: acowebs PDF Invoices and Packing Slips For WooCommerce 1.3.8. Check the vendor advisory for mitigations.

References

• https://plugins.trac.wordpress.org/browser/pdf-invoices-and-packing-slips-for-woocommerce/trunk/includes/class-apifw-front-end.php#L94
• https://plugins.trac.wordpress.org/changeset/3042740/
• https://www.wordfence.com/threat-intel/vulnerabilities/id/4dc6e879-4ccf-485e-b02d-2b291e67df40?source=cve
• https://plugins.trac.wordpress.org/browser/pdf-invoices-and-packing-slips-for-woocommerce/trunk/includes/class-apifw-front-end.php#L94
• https://plugins.trac.wordpress.org/changeset/3042740/
• https://www.wordfence.com/threat-intel/vulnerabilities/id/4dc6e879-4ccf-485e-b02d-2b291e67df40?source=cve

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