hiWeb Export Posts <= 0.9.0.0 - Cross-Site Request Forgery zu Löschen beliebiger Dateien

The primary impact of CVE-2025-7640 is the ability for an attacker to delete files on a WordPress server. This is achieved through a Cross-Site Request Forgery (CSRF) attack exploiting missing or incorrect nonce validation in the tool-dashboard-history.php file. A successful attack could involve deleting critical configuration files, such as wp-config.php, which would grant the attacker complete control over the WordPress installation. The potential for remote code execution is significant, as the attacker could then upload and execute malicious code on the compromised server. This vulnerability shares similarities with other CSRF-based file deletion attacks, highlighting the importance of robust nonce validation in web applications.

WordPress websites using the hiWeb Export Posts plugin, particularly those with shared hosting environments or legacy configurations lacking robust CSRF protection, are at significant risk. Sites with administrative accounts that are frequently used or have weak passwords are also more vulnerable to CSRF attacks.

• wordpress / plugin: Use wp-cli plugin list to identify instances of the hiWeb Export Posts plugin. Check plugin file modification dates for suspicious changes.

wp plugin list --status=active | grep hiweb

• generic web: Monitor access logs for requests to tool-dashboard-history.php originating from unusual IP addresses or user agents. Look for POST requests with suspicious parameters.

grep "tool-dashboard-history.php" /var/log/apache2/access.log

• wordpress / plugin: Examine plugin files for missing or incorrect nonce validation. Search for instances of tool-dashboard-history.php where nonce checks are absent.

grep -r "tool-dashboard-history.php" /path/to/wordpress/wp-content/plugins/hiweb-export-posts/

1. 2025-07-24Disclosure

   disclosure

1. Reserviert2025-07-14
2. Veröffentlicht2025-07-24
3. Geändert2026-04-08
4. EPSS aktualisiert2026-03-23

The immediate mitigation for CVE-2025-7640 is to upgrade the hiWeb Export Posts plugin to a version containing the fix, once released by the vendor. If upgrading is not immediately possible, implement a Web Application Firewall (WAF) rule to block requests to tool-dashboard-history.php that lack proper nonce validation. Alternatively, restrict access to this file using server-level configurations (e.g., .htaccess) to prevent unauthorized access. Carefully review and audit all plugin configurations to ensure proper security practices are in place. After upgrading, confirm the vulnerability is resolved by attempting a CSRF attack against the tool-dashboard-history.php endpoint and verifying that the request is rejected.