Subscriber-level site takeover via unchecked AJAX handler
Published Jun 7, 2023 · Updated Apr 8, 2026
Authorization bypass in 16 XforWooCommerce WordPress plugins allows remote authenticated users to alter site settings and list users. The shared wp_ajax_svx_ajax_factory handler invokes ajax_factory without a capability check or nonce, then accepts caller-selected operations that read, update, or delete WordPress options and plugin settings. Any logged-in user, including a self-registered WooCommerce customer, can invoke it and can redirect the site or enable administrator account creation.
Summary
What happened
Authorization bypass in 16 XforWooCommerce WordPress plugins allows remote authenticated users to alter site settings and list users. The shared wp_ajax_svx_ajax_factory handler invokes ajax_factory without a capability check or nonce, then accepts caller-selected operations that read, update, or delete WordPress options and plugin settings. Any logged-in user, including a self-registered WooCommerce customer, can invoke it and can redirect the site or enable administrator account creation.
The record
- CVE
- CVE-2021-4337
- Published
- Jun 7, 2023
- Updated
- Apr 8, 2026
- Vendor
- XforWooCommerce
- Product
- XforWooCommerce
- Classifications
- CWE-862, T1190
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- Jun 7, 2023CVE publishedPublication date reported by the CVE source.
- Apr 8, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=0 <1.7.0
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Public exploit references
No public exploit references are available in this record.
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Technologies
Your stack
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Your stack
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