CVE-2025-11973: 
WordPress vulnerability analysis and mitigation

CVE-2025-11973 is an Arbitrary File Read vulnerability in the 简数采集器 (Keydatas) plugin for WordPress, affecting all versions up to and including 2.6.3. The flaw exists in the __kds_flag functionality used to import featured images, allowing authenticated attackers with Administrator-level access or higher to read arbitrary files on the server. It was published on November 21, 2025, with the CVE assigned by Wordfence. The CVSS v3.1 base score is 4.9 (Medium) (Wordfence, Red Hat CVE).

The vulnerability is classified as CWE-73 (External Control of File Name or Path), where user-supplied input is used to construct file paths without adequate restriction or sanitization (Wordfence). The __kds_flag parameter, part of the plugin's featured image import functionality, can be manipulated by an authenticated administrator to reference arbitrary files on the server's filesystem rather than legitimate image resources. Exploitation requires network access and valid Administrator-level credentials, but no user interaction beyond authentication. A related code reference has been identified in the plugin's list table class (class-gallery-photo-gallery-list-table.php) (NVD Reference).

Successful exploitation allows an authenticated administrator to read the contents of arbitrary files on the web server, including sensitive configuration files such as wp-config.php (containing database credentials), /etc/passwd, private keys, or application secrets. This results in a high confidentiality impact with no integrity or availability impact. While the attack requires Administrator privileges — limiting the exposure scope — compromised credentials or insider threats could enable this vulnerability to facilitate further lateral movement or privilege escalation by exposing credentials stored in server-side files (Wordfence).

No public proof-of-concept exploit code or evidence of active in-the-wild exploitation has been reported for CVE-2025-11973. The EPSS score is approximately 0.028% (0.000280), 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 is constrained by the requirement for Administrator-level authentication, significantly reducing the attack surface (Wordfence, Red Hat CVE).

1. Reconnaissance: Identify WordPress sites running the 简数采集器 (Keydatas) plugin version 2.6.3 or earlier, using tools like WPScan or by inspecting plugin directories.
2. Authentication: Obtain or compromise Administrator-level credentials for the target WordPress installation (e.g., via credential stuffing, phishing, or reuse of leaked credentials).
3. Locate the vulnerable functionality: Navigate to the plugin's featured image import feature within the WordPress admin panel, which uses the __kds_flag parameter.
4. Craft malicious request: Manipulate the __kds_flag parameter in the HTTP request to reference an arbitrary server-side file path (e.g., ../../../../wp-config.php or /etc/passwd) instead of a legitimate image URL.
5. Retrieve sensitive file contents: Submit the crafted request and observe the server response, which will return the contents of the targeted file, potentially exposing database credentials, API keys, or other sensitive configuration data (Wordfence).

• Logs: WordPress access logs showing authenticated POST or GET requests to admin-side endpoints associated with the Keydatas plugin's image import functionality, with unusual file path values in the __kds_flag parameter (e.g., containing ../, /etc/, or wp-config).
• Logs: Server-side PHP error logs referencing unexpected file read operations from within the plugin's import handler.
• Network: Outbound data transfers from the web server following admin-panel requests to the plugin's import feature, potentially indicating exfiltration of retrieved file contents.
• File System: No direct file system artifacts are expected, as this is a read-only vulnerability; however, review access logs for repeated or unusual file read patterns originating from the plugin's functionality.

Users should update the 简数采集器 (Keydatas) WordPress plugin to a version beyond 2.6.3, which addresses this vulnerability. The WordPress plugin page (https://wordpress.org/plugins/keydatas/) should be monitored for the availability of a patched release. As an interim workaround, site administrators should disable or deactivate the plugin until a patch is applied, and enforce the principle of least privilege by auditing which accounts hold Administrator-level access. Additionally, implementing a Web Application Firewall (WAF) rule to block requests containing path traversal sequences in plugin-related parameters can reduce risk (Wordfence).