CVE-2026-6455
HighSummary
The WP Contact Form 7 DB Handler plugin for WordPress is vulnerable to Cross-Site Request Forgery leading to Arbitrary File Deletion via SQL Injection and PHP Object Injection in versions up to and including 3.0. This is due to a missing nonce verification in the process_bulk_action() function.
Risk Assessment
An attacker can exploit this vulnerability to delete files from the server, potentially leading to data loss and significant disruption of application functionality. In particular, administrators may be exposed to unauthorized actions.
Recommendation
It is recommended to update the plugin to the latest version to mitigate this vulnerability. Additionally, implementing extra security measures, such as nonce verification in every required case, is advisable.
Related vulnerabilities
- CVE-2026-71377Critical
Command argument injection vulnerability in Cosminexus Component Container. Allows an attacker to execute unauthorized system commands.
- CVE-2026-71376Critical
OS command injection vulnerability in Cosminexus Component Container. Allows an attacker to execute arbitrary commands on the server.
- CVE-2026-62645Critical
Vulnerability in Reyrolle 7SR5 exposes information through the web interface that can be used to calculate current and past session ID numbers. An attacker could bypass authentication and gain unauthorized access to the device.
- CVE-2026-50093Critical
Vulnerability in the OIS web module of Siveillance Control allows an attacker to upload arbitrary files to the server. Successful exploitation could allow an attacker to gain root access on the host system, potentially leading to full compromise of the OIS environment.
- CVE-2026-71374Critical
Deserialization of untrusted data vulnerability in Cosminexus Component Container. Could allow an attacker to execute arbitrary code or cause a crash.
- CVE-2026-86510Critical
The D-Link DIR-822A router version A_101 has a vulnerability in the tunnel_set_params function of the L2TP Control Message Parser component, leading to an out-of-bounds write. The attack can be launched remotely, and the exploit has been publicly disclosed.
- CVE-2026-86509Critical
The D-Link DIR-895L router version A1_102b07 has a vulnerability in the sendOffer/sendACK functions of the file udhcpcd/serverpacket.c in the udhcpcd component, causing a stack-based buffer overflow. The attack can only be performed within the local network, and the exploit has been published.
- CVE-2026-76969Critical
The @sap/cds-mtxs NPM library does not perform sufficient checks on certain functionality used in multitenant CAP applications with extensibility enabled. An unauthenticated attacker could send specially crafted requests to obtain sensitive credentials and abuse them to replace or delete tenant data. Successful exploitation can result in a high impact on availability and integrity of the application, and partial impact on confidentiality of business data.
- CVE-2026-66768Critical
SAP GUI for Java does not correctly enforce the trust level policy for certain functions invoked from a connected backend system. A low-privileged attacker could exploit this weakness by manipulating a connected backend system to trigger affected functionality. This could allow arbitrary command execution on the victim's machine, leading to a high impact on confidentiality, integrity, and availability.
- CVE-2026-58240Critical
SAP NetWeaver Message Server does not sufficiently validate the authenticity of internal application server components during registration. An unauthenticated attacker with network access could register an unauthorized component and potentially perform unauthorized actions, resulting in high impact on confidentiality, integrity, and availability.
Original NVD description (English source)
The WP Contact Form 7 DB Handler plugin for WordPress is vulnerable to Cross-Site Request Forgery leading to Arbitrary File Deletion via SQL Injection and PHP Object Injection in versions up to and including 3.0. This is due to a missing nonce verification in the process_bulk_action() function, the nonce check is only executed when _wpnonce is present in the POST body, allowing it to be trivially bypassed by omitting the field, combined with the use of an unsanitized, unparameterized user-supplied value in a numeric SQL context (WHERE ID = $ID) and the unsafe deserialization of the query result's post_content field. An attacker can craft a CSRF page that tricks a logged-in administrator into triggering a UNION-based SQL injection payload (using CHAR() to avoid esc_sql quote-escaping) that returns a malicious serialized PHP array as post_content; upon deserialization, array values associated with keys containing 'ys_cfdbh_file' are used as file paths appended to the uploads directory pa