WooCommerce Stock Manager <= 2.5.7 - Cross-Site Request Forgery to Arbitrary File Upload
Strategic Overview
- Status
- Patched in 2.6.0
- Affected Plugin
- Stock Manager for WooCommerce
- Affected Version
<= 2.5.7- CVSS
- 8.8High
- Weakness type
- CWE-352 · Cross-Site Request Forgery (CSRF)
- CVE
CVE-2021-34619
At a glance
CVE-2021-34619 is a high-severity Cross-Site Request Forgery (CSRF) vulnerability in the Stock Manager for WooCommerce WordPress plugin, affecting versions <= 2.5.7. It carries a CVSS score of 8.8 (reachable over the network; low attack complexity; high confidentiality, integrity, availability impact). Exploitation requires no authentication. The issue is fixed in version 2.6.0; sites on affected versions should update now. Disclosed June 2021, reported by Chloe Chamberland.
Vulnerability Overview
The WooCommerce Stock Manager WordPress plugin is vulnerable to Cross-Site Request Forgery leading to Arbitrary File Upload in versions up to, and including, 2.5.7 due to missing nonce and file validation in the /woocommerce-stock-manager/trunk/admin/views/import-export.php file.
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 privileges on the target site. A successful exploit has high impact on confidentiality, integrity, availability — full site compromise territory.
CWE-352: Cross-Site Request Forgery (CSRF)
Reaching this weakness in Stock Manager for WooCommerce <= 2.5.7 takes a caller who can reach the endpoint. Cross-site request forgery abuses the fact that browsers attach a victim's cookies to any request, so a state-changing action that only checks who you are, not whether you meant to act, can be triggered from another site.
An attacker who gets a logged-in user to load a crafted page can perform that action as them, with the impact scaling to whatever the victim's role is allowed to do. For Stock Manager for WooCommerce the fix is 2.6.0: builds <= 2.5.7 are affected, anything from 2.6.0 onward is not.
Remediation
Update to version 2.6.0, or a newer patched version
How does WordSec protect against this?
The attempt arrives as an ordinary request to Stock Manager for WooCommerce: WordSec's web application firewall inspects request payloads before WordPress loads them. None of that substitutes for the fix: Stock Manager for WooCommerce 2.6.0 closes this, and updating the plugin is the step that ends it.
- Firewall
- Alerts
External References
Related records
Same weakness class
Other vulnerabilities in Stock Manager for WooCommerce
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