Summary
generated automatically from NVD dataThe PDF Invoice for WooCommerce + Drag and Drop Template Builder plugin for WordPress, in all versions up to and including 7.1.1, is vulnerable to PHP Object Injection (CWE-502). The 'customer_note' checkout field is inserted into invoice HTML without sufficient sanitization, and it ends up in mPDF's _getObjAttr, which calls unserialize() without validation. An unauthenticated attacker can reach this path through an anonymous checkout via the public Store API with a Direct Bank Transfer or cheque payment, allowing code execution on the server; the CVSS v3.1 score is 9.8 (CRITICAL).
NVD description
The PDF Invoice for WooCommerce + Drag and Drop Template Builder plugin for WordPress is vulnerable to PHP Object Injection in all versions up to, and including, 7.1.1 via the 'customer_note' parameter parameter. This is due to insufficient sanitization of the customer_note checkout field, which is inlined verbatim into invoice HTML, entity-decoded back into a live tag by simplehtmldom, reassembled into raw bytes by mPDF, and passed to unserialize() in _getObjAttr without validation. This makes it possible for unauthenticated attackers to execute code on the server. An unauthenticated attacker can trigger the vulnerable code path on a default install by placing an anonymous WooCommerce checkout via the public Store API (POST /wc/store/v1/checkout) using a Direct Bank Transfer or cheque payment method, which automatically transitions the order to 'on-hold' status and fires the plugin's invoice-generation hook.
EPSS · FIRST.org
0.52%probability of exploitation in the next 30 days
Higher than 44% of scored CVEs
EPSS (Exploit Prediction Scoring System) estimates, from observed exploitation activity, how likely a CVE is to be exploited in the next 30 days. It complements CVSS, which measures severity, not likelihood. Score of 2026-10-31, recomputed daily by FIRST.org.
CVSS v3.1 Score
Information
- Published
- 31 oct. 2026
- Updated
- 31 oct. 2026
- Status
- Received
- Source
- security@wordfence.com
Weaknesses (CWE)
References (8)
Similar CVEs
Other vulnerabilities of type CWE-502
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