CVE-2025-68562: 
WordPress vulnerability analysis and mitigation

CVE-2025-68562 is an Unrestricted File Upload vulnerability in the RomanCode MapSVG WordPress plugin that allows authenticated attackers with low-level privileges to upload a web shell to the web server. It affects MapSVG versions from n/a through 8.7.3. The vulnerability was published on December 29, 2025, and was assigned by Patchstack. It carries a CVSS v3.1 base score of 9.9 (Critical) (Red Hat CVE, Patchstack).

The vulnerability is classified as CWE-434 (Unrestricted Upload of File with Dangerous Type), meaning the plugin fails to properly validate or restrict the types of files that authenticated users can upload. An attacker with low-privileged access (e.g., a subscriber or contributor account) can upload a malicious file — such as a PHP web shell — directly to the web server through the plugin's file upload functionality. Because the scope is marked as Changed in the CVSS vector, successful exploitation can impact resources beyond the vulnerable component itself. No public proof-of-concept code has been identified at this time (Red Hat CVE, Patchstack).

Successful exploitation allows a low-privileged attacker to upload and execute arbitrary code on the web server, effectively achieving remote code execution (RCE). This can result in complete system compromise, including unauthorized access to sensitive data, modification or deletion of files, and potential lateral movement within the hosting environment. The confidentiality, integrity, and availability impacts are all rated High, with a Changed scope indicating that the compromise can extend beyond the WordPress application itself (Red Hat CVE).

There is currently no public proof-of-concept exploit code and no confirmed evidence of in-the-wild exploitation (Red Hat CVE). The EPSS score is approximately 0.042%, reflecting a low current probability of exploitation in the near term. The vulnerability requires only low-level authenticated access (e.g., a registered WordPress user), which lowers the barrier for exploitation on sites with open registration. No threat actor attribution has been reported, and the vulnerability does not appear in the CISA Known Exploited Vulnerabilities (KEV) catalog as of the time of this report. The vulnerability was mentioned in the CISA weekly vulnerability bulletin for the week of December 29, 2025 (CISA Bulletin).

1. Reconnaissance: Identify WordPress sites running the MapSVG plugin version 8.7.3 or earlier using tools like WPScan, Shodan, or Google dorks (e.g., inurl:/wp-content/plugins/mapsvg-lite-interactive-vector-maps/).
2. Obtain low-privileged access: Register or obtain credentials for a low-privileged WordPress account (e.g., subscriber) on the target site, or leverage existing credentials.
3. Locate the vulnerable upload endpoint: Identify the file upload functionality exposed by the MapSVG plugin, typically accessible through the WordPress admin panel or a plugin-specific API endpoint.
4. Craft a malicious payload: Prepare a PHP web shell file (e.g., shell.php) containing code such as <?php system($_GET['cmd']); ?> that enables remote command execution.
5. Upload the web shell: Submit the malicious file through the plugin's upload feature, bypassing file type restrictions due to the lack of proper validation.
6. Execute commands: Access the uploaded web shell via its URL (e.g., https://target.com/wp-content/uploads/mapsvg/shell.php?cmd=id) to execute arbitrary OS commands on the server.

• File System: Unexpected PHP files (e.g., shell.php, cmd.php) in the MapSVG plugin upload directory (/wp-content/uploads/mapsvg/ or similar); newly created files with unusual extensions in WordPress upload directories.
• Logs: Web server access logs showing POST requests to MapSVG plugin upload endpoints followed by GET requests to newly created PHP files in upload directories; requests containing shell command parameters (e.g., ?cmd=, ?exec=).
• Network: Outbound connections from the web server process to unknown external IPs, particularly on non-standard ports; unusual DNS lookups originating from the web server.
• Process: Unexpected child processes spawned by the web server (e.g., Apache, Nginx, PHP-FPM) such as bash, sh, curl, wget, or python; processes running under the web server user account performing file system operations outside the web root.

The primary remediation is to upgrade the MapSVG plugin to a version later than 8.7.3, which addresses the unrestricted file upload vulnerability (Patchstack). As interim workarounds, administrators should implement strict file type whitelisting on the web server, configure the server to prevent execution of uploaded files (e.g., deny PHP execution in upload directories), and apply a Web Application Firewall (WAF) rule to block suspicious file upload attempts. Additionally, disabling open user registration and auditing existing low-privileged accounts can reduce the attack surface. Monitoring and logging all file upload activity is also recommended.

The vulnerability was covered in Wordfence's weekly WordPress vulnerability report for December 15, 2025 to January 4, 2026, highlighting it among notable new disclosures (Wordfence). It was also included in the CISA weekly vulnerability bulletin for the week of December 29, 2025 (CISA Bulletin). The Hacker Wire published a brief article on the vulnerability, and it was discussed on Bluesky by security-focused accounts shortly after disclosure. No major vendor statements or significant researcher controversy have been noted beyond standard advisory coverage.