Multiple XforWooCommerce Add-On Plugins (Various Versions) - Missing Authorization
Strategic Overview
- Status
- Patched in 2.8.0
- Affected Plugin
- Share, Print and PDF Products for WooCommerce
- Affected Version
< 2.8.0- CVSS
- 8.8High
- Weakness type
- CWE-862 · Missing Authorization
- CVE
CVE-2021-4337
At a glance
CVE-2021-4337 is a high-severity Missing Authorization vulnerability in the Share, Print and PDF Products for WooCommerce WordPress plugin, affecting versions < 2.8.0. It carries a CVSS score of 8.8 (reachable over the network; low attack complexity; high confidentiality, integrity, availability impact). The root cause is a missing authorization check on a reachable function. The issue is fixed in version 2.8.0; sites on affected versions should update now. Disclosed September 2021, reported by Jerome Bruandet.
Vulnerability Overview
Sixteen XforWooCommerce Add-On Plugins for WordPress are vulnerable to authorization bypass due to a missing capability check on the wp_ajax_svx_ajax_factory function in various versions listed below. This makes it possible for authenticated attackers, with subscriber-level permissions and above, to read, edit, or delete WordPress settings, plugin settings, and to arbitrarily list all users on a WordPress website. The plugins impacted are: Product Filter for WooCommerce < 8.2.0, Improved Product Options for WooCommerce < 5.3.0, Improved Sale Badges for WooCommerce < 4.4.0, Share, Print and PDF Products for WooCommerce < 2.8.0, Product Loops for WooCommerce < 1.7.0, XforWooCommerce < 1.7.0, Package Quantity Discount < 1.2.0, Price Commander for WooCommerce < 1.3.0, Comment and Review Spam Control for WooCommerce < 1.5.0, Add Product Tabs for WooCommerce < 1.5.0, Autopilot SEO for WooCommerce < 1.6.0, Floating Cart < 1.3.0, Live Search for WooCommerce < 2.1.0, Bulk Add to Cart for WooCommerce < 1.3.0, Live Product Editor for WooCommerce < 4.7.0, and Warranties and Returns for WooCommerce < 5.3.0.
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-862: Missing Authorization
Reaching this weakness in Share, Print and PDF Products for WooCommerce < 2.8.0 takes a caller who can reach the endpoint. A missing authorization check means a function is reachable by anyone who can reach the endpoint, because the code never asks whether the caller is allowed to perform the action.
Any user who can reach the endpoint gets to run an action reserved for higher-privileged roles, from reading protected data to changing settings or content. For Share, Print and PDF Products for WooCommerce the fix is 2.8.0: builds < 2.8.0 are affected, anything from 2.8.0 onward is not.
Remediation
Update to version 2.8.0, or a newer patched version
How does WordSec protect against this?
Because it turns on account access, WordSec's login security is the relevant layer: role-based two-factor, captcha and brute-force limits raise the cost of getting the account this needs. None of that substitutes for the fix: Share, Print and PDF Products for WooCommerce 2.8.0 closes this, and updating the plugin is the step that ends it.
- Login Security
- Alerts
External References
Related records
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