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CVE-2026-18027

🔶 medium
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Summary

The WebToffee WooCommerce PDF Invoices, Packing Slips, Delivery Notes & Shipping Labels plugin for WordPress is vulnerable to Directory Traversal in all versions up to, and including, 4.9.8 via the get_image_src_in_base64 function. This makes it possible for authenticated attackers, with subscriber-level access and above, to read the contents of arbitrary files on the server, which can contain sensitive information. The base64-encoded file contents are embedded into the cached invoice HTML and s

Description

The WebToffee WooCommerce PDF Invoices, Packing Slips, Delivery Notes & Shipping Labels plugin for WordPress is vulnerable to Directory Traversal in all versions up to, and including, 4.9.8 via the get_image_src_in_base64 function. This makes it possible for authenticated attackers, with subscriber-level access and above, to read the contents of arbitrary files on the server, which can contain sensitive information. The base64-encoded file contents are embedded into the cached invoice HTML and served directly to the attacker via the plugin's own Print/Download invoice endpoints, which require only a valid nonce and access key.

CVSS Score
6.5
Medium
EPSS Score
0.9
Exploit Probability
Published Date
2026-08-23
First Seen: 2026-08-23
📊 Relative Risk Intelligence

This CVE is Lower Risk - more severe than 46.8% of all 348,756 vulnerabilities in our database.

#185,493
Below average severity
Severity Percentile
Last Modified 2026-08-23
Source NVD 🔗
CVSS Vector 3.1 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
CWE IDs (Weakness Types)

📦 Affected Products 0

No affected products information available

🔗 References 6