CVE-2025-7839: 
WordPress vulnerability analysis and mitigation

CVE-2025-7839 is a Cross-Site Request Forgery (CSRF) vulnerability in the "Restore Permanently delete Post or Page Data" plugin for WordPress, affecting all versions up to and including 1.0. The flaw allows unauthenticated attackers to delete WordPress post or page data by tricking a site administrator into clicking a malicious link or visiting a crafted page. It was published on August 23, 2025, and carries a CVSS v3.1 base score of 4.3 (Medium) (Red Hat CVE).

The vulnerability is classified as CWE-352 (Cross-Site Request Forgery) and stems from missing or incorrect nonce validation in the rp_dpo_dpa_ajax_dp_delete_data() function within the plugin. Because the function does not verify a valid WordPress nonce before processing deletion requests, an attacker can craft a forged HTTP request that, when triggered by an authenticated administrator's browser session, causes the server to execute the data deletion action without the administrator's knowledge or consent. No special privileges are required by the attacker; only the victim administrator's interaction (e.g., clicking a link) is needed (Red Hat CVE).

Successful exploitation results in unauthorized deletion of WordPress posts or pages, impacting data integrity. There is no confidentiality or availability impact identified (CVSS scores both as None), meaning attackers cannot read sensitive data or cause service disruption through this vector alone. The scope is limited to the affected WordPress site's content, but loss of post/page data could be disruptive to site operations if critical content is deleted (Red Hat CVE).

No public proof-of-concept exploit code or in-the-wild exploitation has been reported for CVE-2025-7839. The EPSS score is approximately 0.013%, indicating a very low probability of exploitation in the near term. The vulnerability is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog. Exploitation requires social engineering to trick a logged-in WordPress administrator into performing an action, which limits the practical attack surface (Red Hat CVE).

1. Reconnaissance: Identify WordPress sites running the "Restore Permanently delete Post or Page Data" plugin version 1.0 or earlier, using tools like WPScan or manual inspection of plugin directories.
2. Craft malicious request: Construct a forged HTTP request targeting the rp_dpo_dpa_ajax_dp_delete_data() AJAX endpoint (typically via wp-admin/admin-ajax.php) with the appropriate action parameter and target post/page ID, omitting or supplying an invalid nonce.
3. Deliver payload: Embed the forged request in a malicious webpage, email link, or image tag that will be automatically triggered when visited by an authenticated WordPress administrator.
4. Trigger deletion: Trick the site administrator into clicking the link or visiting the page while logged into WordPress; the administrator's browser sends the forged request with their session credentials, causing the plugin to delete the targeted post or page data without further validation (Red Hat CVE).

• Logs: WordPress access logs showing unexpected POST requests to wp-admin/admin-ajax.php with the plugin's action parameter (e.g., action=rp_dpo_dpa_ajax_dp_delete_data) from unusual referrer URLs or external origins.
• Application: Unexplained disappearance of posts or pages in the WordPress admin dashboard, particularly if administrators report not intentionally deleting content.
• Network: HTTP requests to the WordPress AJAX endpoint originating from external or unfamiliar IP addresses coinciding with administrator sessions.

Users should update the "Restore Permanently delete Post or Page Data" plugin to a version beyond 1.0 that includes proper nonce validation, once a patched release is made available by the plugin author. In the interim, administrators should consider deactivating and removing the plugin if it is not essential. General WordPress hardening practices — such as using security plugins that add CSRF protections, and training administrators to avoid clicking unsolicited links while logged in — can reduce exposure (Red Hat CVE).