CVE-2026-11869 Overview
CVE-2026-11869 affects the WP DSGVO Tools (GDPR) WordPress plugin in versions before 3.1.40. The plugin fails to perform an authorization check on the immediate-processing path of its data subject access request (DSAR) feature. Unauthenticated attackers can supply any known email address and download the full personal-data export for that user, customer, or commenter. Exported records include name, postal address, phone number, email address, and comment content. The flaw converts a GDPR compliance feature into an anonymous data-harvesting endpoint on affected WordPress sites.
Critical Impact
Unauthenticated attackers can exfiltrate personally identifiable information (PII) of any registered user, WooCommerce customer, or site commenter by submitting their email address to the DSAR endpoint.
Affected Products
- WP DSGVO Tools (GDPR) WordPress plugin versions prior to 3.1.40
- WordPress installations exposing the plugin's DSAR immediate-processing path
- Sites using the plugin alongside WooCommerce or comment-collection features
Discovery Timeline
- 2026-07-09 - CVE-2026-11869 published to NVD
- 2026-07-09 - Last updated in NVD database
Technical Details for CVE-2026-11869
Vulnerability Analysis
The WP DSGVO Tools plugin implements a DSAR workflow that lets data subjects request an export of their personal data under the EU General Data Protection Regulation (GDPR). The plugin exposes an immediate-processing path that generates and returns the export without validating the requester. This is a broken access control issue [CWE-862 class]. An attacker submits a target email address to the vulnerable endpoint and receives a complete data export in response.
The exported payload aggregates data across WordPress user profiles, WooCommerce customer records, and comment tables. Consequently, a single request can return names, postal addresses, phone numbers, email addresses, and comment content associated with the target identity. Attackers do not need credentials, nonces, or any prior interaction with the site.
Root Cause
The root cause is a missing authorization check on the request handler that produces the immediate export. The plugin trusts the submitted email address as sufficient proof of identity and returns the corresponding personal data. No email verification, session validation, capability check, or rate limiting is enforced before the export is generated.
Attack Vector
An unauthenticated remote attacker sends an HTTP request to the DSAR immediate-processing endpoint with a target email address as a parameter. The server executes the export routine, queries user, customer, and comment tables for records tied to that email, and returns the aggregated PII to the attacker. Email addresses are frequently public or easily enumerated from author pages, comments, and breach data, which lowers the exploitation barrier further.
No verified public exploit code is referenced in the source data. Technical specifics are documented in the WPScan Vulnerability Report.
Detection Methods for CVE-2026-11869
Indicators of Compromise
- Unauthenticated HTTP requests to the plugin's DSAR endpoints containing an email parameter and no valid session cookie or nonce.
- Outbound responses from /wp-admin/admin-ajax.php or plugin-specific endpoints returning archive files or JSON payloads containing multiple PII fields.
- Bursts of DSAR requests from a single IP address enumerating known user or customer email addresses.
Detection Strategies
- Review web server access logs for requests targeting WP DSGVO Tools DSAR handlers where the User-Agent, referrer, or session state indicates an unauthenticated client.
- Correlate requests submitting varied email parameters within a short interval to identify enumeration behavior.
- Alert on HTTP 200 responses from plugin endpoints with response sizes consistent with data exports rather than normal form submissions.
Monitoring Recommendations
- Enable WordPress audit logging for DSAR events and forward logs to a centralized SIEM for correlation.
- Monitor the plugin's version across all managed WordPress instances and flag any version below 3.1.40.
- Track anomalous outbound data volumes from web servers that could indicate bulk PII exfiltration.
How to Mitigate CVE-2026-11869
Immediate Actions Required
- Update WP DSGVO Tools (GDPR) to version 3.1.40 or later on every affected WordPress site.
- If immediate patching is not possible, deactivate the plugin until the update can be applied.
- Review recent web server and application logs for evidence of DSAR abuse and notify affected data subjects if unauthorized exports occurred.
Patch Information
The vendor addressed the flaw in WP DSGVO Tools (GDPR) version 3.1.40 by adding an authorization check on the immediate-processing path. Refer to the WPScan Vulnerability Report for advisory details and fixed-version confirmation.
Workarounds
- Block public access to the plugin's DSAR endpoints at the web application firewall (WAF) until the update is applied.
- Restrict access to admin-ajax.php actions associated with the plugin using server-level rules or plugin-level filters.
- Apply strict rate limiting on DSAR-related URIs to slow enumeration and mass-export attempts.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
