CVE-2025-51529 Details
Description
Incorrect Access Control in the AJAX endpoint functionality in jonkastonka Cookies and Content Security Policy plugin through version 2.29 allows remote attackers to cause a denial of service (database server resource exhaustion) via unlimited database write operations to the wp_ajax_nopriv_cacsp_insert_consent_data endpoint.
A denial-of-service vulnerability has been identified in the WordPress Cookies and Content Security Policy plugin, developed by Johan Jonk Stenstroem, and all versions prior to 2.29. The issue arises from incorrect access control in the AJAX endpoint 'wp_ajax_nopriv_cacsp_insert_consent_data', which is available to unauthenticated users. This vulnerability allows remote attackers to exhaust database server resources by sending unlimited write operations, leading to significant CPU and disk I/O exhaustion.
To address this vulnerability, it is recommended to add nonce verification for AJAX calls, implement rate limiting per IP address, and ensure proper validation of user inputs.
Metrics
CVSS 4.0 Severity and Vector Strings:
No CVSS 4.0 data is available for this CVE.
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
CISA-ADP
Assessed Aug 19, 2025References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://gist.github.com/piotrmaciejbednarski/f738145c0ab24a110649dc16907e395b | [email protected] | Product |
| https://github.com/piotrmaciejbednarski/CVE-2025-51529 | [email protected] | ExploitThird Party Advisory |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-284 | Improper Access Control | CISA-ADP |
Affected Products
| Product | Versions |
|---|---|
| followmedarling cookies and content security policy | <= 2.29 |
CPE
Remediation
| |
Change History
7 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jul 5, 2026 | CVE Modified | [email protected] |
| Jul 5, 2026 | CVE Modified | [email protected] |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| Jun 17, 2026 | CVE Modified | [email protected] |
| Oct 21, 2025 | Initial Analysis | [email protected] |
| Aug 19, 2025 | CVE Modified | CISA-ADP |
| Aug 19, 2025 | New CVE Received | [email protected] |