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PatchSiren cyber security CVE debrief

CVE-2026-39472 WP Overnight CVE debrief

CVE-2026-39472 is a HIGH severity vulnerability in WooCommerce PDF Invoices & Packing Slips plugin versions less than 5.9.0. The vulnerability is caused by a PHP Object Injection issue that can be exploited by shop managers. The Common Vulnerability Scoring System (CVSS) score for this vulnerability is 7.2.

Vendor
WP Overnight
Product
WooCommerce PDF Invoices & Packing Slips
CVSS
HIGH 7.2
CISA KEV
Not listed in stored evidence
Original CVE published
2026-06-15
Original CVE updated
2026-06-15
Advisory published
2026-06-15
Advisory updated
2026-06-15

Who should care

Users of WooCommerce PDF Invoices & Packing Slips plugin versions less than 5.9.0 should update to version 5.9.0 or later to mitigate this vulnerability.

Technical summary

The vulnerability is caused by a PHP Object Injection issue in WooCommerce PDF Invoices & Packing Slips plugin versions less than 5.9.0. The CVSS vector for this vulnerability is CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H.

Defensive priority

HIGH

Recommended defensive actions

  • Update WooCommerce PDF Invoices & Packing Slips plugin to version 5.9.0 or later.
  • See ${ref-4} for more information.

Evidence notes

Vendor and product information is not confirmed. See ${cve-org} for official CVE record and ${nvd} for NVD details.

Official resources

CVE-2026-39472 was published on ${cvePublishedAt} and modified on ${cveModifiedAt}.