PatchSiren cyber security CVE debrief
CVE-2021-47932 Wordpress CVE debrief
CVE-2021-47932 is a critical unauthenticated privilege-escalation issue affecting TheCartPress 1.5.3.6. Crafted POST requests to the tcp_register_and_login_ajax action can set tcp_role=administrator, allowing an attacker to create administrator accounts and gain full administrative access without credentials.
- Vendor
- Wordpress
- Product
- Unknown
- CVSS
- CRITICAL 9.3
- CISA KEV
- Not listed in stored evidence
- Original CVE published
- 2026-05-10
- Original CVE updated
- 2026-05-10
- Advisory published
- 2026-05-10
- Advisory updated
- 2026-05-10
Who should care
WordPress site owners, administrators, and managed service providers running TheCartPress 1.5.3.6, especially on internet-facing sites and any environment that delegates plugin maintenance.
Technical summary
The supplied record describes an authorization failure in TheCartPress's AJAX registration/login handler. Because the endpoint accepts unauthenticated POST requests and honors a user-controlled role parameter, an attacker can submit a request that creates an administrator-level account. The supplied metadata classifies the weakness as CWE-862 and rates the issue Critical (CVSS 9.3).
Defensive priority
Immediate. This is a network-reachable, unauthenticated path to administrator access and should be treated as a site-compromise risk until the plugin is removed, disabled, or otherwise confirmed fixed.
Recommended defensive actions
- Inventory WordPress installations for TheCartPress 1.5.3.6.
- Disable or remove the plugin until a verified fix is available.
- Review administrator accounts and recent account-creation activity for unauthorized changes.
- Check web and application logs for POST requests to tcp_register_and_login_ajax and other suspicious registration activity.
- If compromise is suspected, rotate credentials and investigate for follow-on changes to users, plugins, themes, and content.
Evidence notes
The supplied source set includes the official CVE record, the NVD detail page, a WordPress plugin page for TheCartPress, a VulnCheck advisory, and an Exploit-DB listing. The metadata marks the vulnerability status as 'Received' and identifies CWE-862 as the primary weakness. No CISA KEV data was supplied.
Official resources
Published in the supplied NVD/CVE data on 2026-05-10. No KEV entry was supplied.