CVE-2025-68546: 
WordPress vulnerability analysis and mitigation

CVE-2025-68546 is a PHP Local File Inclusion (LFI) vulnerability in the Thembay Nika WordPress theme, classified under CWE-98 (Improper Control of Filename for Include/Require Statement in PHP Program). It affects all versions of the Nika theme up to and including version 1.2.14. The vulnerability was disclosed on December 23, 2025, by Patchstack, which serves as the CVE Numbering Authority (CNA) for this entry. It carries a CVSS v3.1 base score of 7.5 (High) (Patchstack, Red Hat CVE).

The root cause is improper control of filenames used in PHP include/require statements (CWE-98), which allows an attacker to manipulate file path parameters to include arbitrary local files from the server. The attack vector is network-based, requires low privileges (authenticated access), and has high attack complexity, meaning some preconditions or non-default configurations must be met. An authenticated attacker can craft a request that passes a malicious file path to a vulnerable include statement within the Nika theme, causing the server to include and potentially execute sensitive local files such as configuration files or PHP scripts already present on the server (Patchstack, Red Hat CVE).

Successful exploitation of this LFI vulnerability can result in high impact to confidentiality, integrity, and availability of the affected WordPress installation. An attacker could read sensitive server-side files (e.g., wp-config.php containing database credentials), potentially escalate to remote code execution if combined with file upload capabilities or log poisoning techniques, and disrupt site availability. The scope is limited to the affected system, but credential exposure could enable lateral movement to connected databases or hosting infrastructure (Patchstack, Red Hat CVE).

No public proof-of-concept exploit code or evidence of active in-the-wild exploitation has been reported as of the available data. The EPSS score is approximately 0.127%, indicating a low probability of exploitation in the near term. The vulnerability is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog. Exploitation requires authenticated access and high attack complexity, which somewhat limits opportunistic exploitation (Feedly).

1. Reconnaissance: Identify WordPress sites using the Thembay Nika theme version 1.2.14 or earlier, using tools like WPScan or by inspecting theme metadata in the site's source code.
2. Authentication: Obtain low-privilege credentials (e.g., subscriber or contributor account) on the target WordPress site through registration, credential stuffing, or phishing.
3. Identify vulnerable parameter: Locate the theme's PHP file that uses an unsanitized user-supplied input in an include or require statement — typically a template or page parameter.
4. Craft malicious request: Send an authenticated HTTP request with a manipulated file path parameter (e.g., ?template=../../../../wp-config.php) targeting the vulnerable endpoint.
5. Exfiltrate sensitive data: Review the server response for included file contents, such as database credentials from wp-config.php, or use log poisoning to escalate to remote code execution if PHP logs are accessible (Patchstack).

• Network: Authenticated HTTP requests containing path traversal sequences (e.g., ../, ..%2F, ....//) in theme-related query parameters; unusual GET/POST requests to WordPress theme files with file path values.
• Logs: WordPress or web server access logs showing requests with encoded path traversal patterns targeting Nika theme endpoints; repeated 200 responses to requests with suspicious file path parameters.
• File System: Unexpected access to sensitive files such as wp-config.php, /etc/passwd, or PHP session files as reflected in server access logs; presence of web shells if LFI was chained with a file upload attack.
• Process: Unusual PHP process activity reading files outside the WordPress web root directory.

WordPress site administrators should update the Thembay Nika theme to a version released after 1.2.14, which addresses this vulnerability. If an immediate update is not possible, consider disabling the Nika theme and switching to an alternative until a patch is applied. Additionally, implementing a Web Application Firewall (WAF) rule to block path traversal patterns in HTTP requests can serve as a temporary mitigation. Restricting user registration or limiting low-privilege account creation reduces the authenticated attack surface (Patchstack, Wordfence).

Wordfence included CVE-2025-68546 in its weekly WordPress vulnerability report covering December 15, 2025 to January 4, 2026, highlighting it as part of a broader set of theme-related vulnerabilities (Wordfence). The vulnerability was also noted by INCIBE (Spain's national cybersecurity institute) in their early warning alerts (INCIBE). No significant broader media coverage or notable researcher commentary beyond standard vulnerability tracking has been observed.