Facebook for WooCommerce <= 1.9.12 - Cross-Site Request Forgery allowing Option Update
Strategic Overview
- Status
- Patched in 1.9.15
- Affected Plugin
- Meta for WooCommerce
- Affected Version
<= 1.9.12- CVSS
- 8.8High
- Weakness type
- CWE-352 · Cross-Site Request Forgery (CSRF)
- CVE
CVE-2019-15841
At a glance
CVE-2019-15841 is a high-severity Cross-Site Request Forgery (CSRF) vulnerability in the Meta for WooCommerce WordPress plugin, affecting versions <= 1.9.12. 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 1.9.15; sites on affected versions should update now. Disclosed June 2019.
Vulnerability Overview
The facebook-for-woocommerce plugin before 1.9.15 for WordPress has CSRF via ajax_woo_infobanner_post_click, ajax_woo_infobanner_post_xout, or ajax_fb_toggle_visibility.
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 Meta for WooCommerce <= 1.9.12 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 Meta for WooCommerce the fix is 1.9.15: builds <= 1.9.12 are affected, anything from 1.9.15 onward is not.
Remediation
Update to version 1.9.15, or a newer patched version
How does WordSec protect against this?
The attempt arrives as an ordinary request to Meta for WooCommerce: WordSec's web application firewall inspects request payloads before WordPress loads them. None of that substitutes for the fix: Meta for WooCommerce 1.9.15 closes this, and updating the plugin is the step that ends it.
- Firewall
- Alerts
External References
Related records
Same weakness class
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