CVE-2025-69121: Deliciosa Path Traversal Vulnerability

CVE-2025-69121 Overview

CVE-2025-69121 is an unauthenticated Local File Inclusion (LFI) vulnerability affecting the Deliciosa WordPress theme in versions 1.10.0 and earlier. The flaw is categorized under [CWE-98] (Improper Control of Filename for Include/Require Statement in PHP Program). Remote attackers can include arbitrary local files via the vulnerable theme without authentication. Successful exploitation can lead to source code disclosure, sensitive configuration exposure, and in chained scenarios, remote code execution on the underlying WordPress host.

Critical Impact
An unauthenticated attacker can include arbitrary local files through the Deliciosa theme, exposing WordPress configuration data and enabling further compromise of the site.

Affected Products

Deliciosa WordPress theme versions <= 1.10.0
WordPress installations using the Deliciosa theme
Sites that have not applied the vendor patch

Discovery Timeline

2026-06-17 - CVE-2025-69121 published to NVD
2026-06-17 - Last updated in NVD database

Technical Details for CVE-2025-69121

Vulnerability Analysis

The Deliciosa theme contains a PHP file inclusion routine that accepts user-controlled input without proper validation. The vulnerability falls under [CWE-98], where filename parameters used in PHP include or require statements are influenced by untrusted request data. Because authentication is not required, any remote visitor can interact with the vulnerable endpoint.

Local File Inclusion vulnerabilities in WordPress themes commonly enable attackers to read wp-config.php, which contains database credentials and secret keys. Disclosure of these secrets can lead to full site takeover. In environments where log poisoning, session file manipulation, or PHP wrapper abuse is possible, LFI can escalate to remote code execution.

The attack complexity is rated high, indicating that exploitation requires specific conditions to be met, such as particular request parameters, server configuration, or file path knowledge. Despite this, the unauthenticated nature of the flaw and the high impact across confidentiality, integrity, and availability make it a priority for remediation.

Root Cause

The root cause is improper sanitization of a filename parameter passed to a PHP file inclusion function within the Deliciosa theme. The theme fails to enforce an allowlist of permitted files or strip directory traversal sequences such as ../. As a result, attacker-controlled input reaches an include or require call directly.

Attack Vector

The attack is conducted remotely over the network. An attacker crafts an HTTP request targeting the vulnerable theme endpoint with a manipulated file path parameter. No credentials and no user interaction are required. Refer to the Patchstack CVE Vulnerability Report for vendor-supplied technical context.

// No verified proof-of-concept code is publicly available for CVE-2025-69121.
// See the Patchstack advisory linked above for technical details.

Detection Methods for CVE-2025-69121

Indicators of Compromise

HTTP requests to Deliciosa theme paths containing directory traversal sequences such as ../ or encoded variants like %2e%2e%2f.
Web server access logs showing parameters referencing sensitive files such as wp-config.php, /etc/passwd, or PHP session files.
Unexpected PHP errors or warnings tied to include or require statements in the theme directory.

Detection Strategies

Inspect web server and WAF logs for requests targeting Deliciosa theme files with suspicious query parameters.
Audit installed WordPress themes and confirm whether Deliciosa is present at version 1.10.0 or earlier.
Correlate inbound request anomalies with outbound traffic spikes that may indicate data exfiltration following file disclosure.

Monitoring Recommendations

Enable verbose logging on the WordPress host and forward logs to a centralized analytics platform for retention and correlation.
Alert on repeated 200-status responses to theme endpoints carrying traversal characters in query strings.
Monitor file integrity on wp-config.php and other sensitive files for unauthorized access patterns.

How to Mitigate CVE-2025-69121

Immediate Actions Required

Identify all WordPress sites using the Deliciosa theme and confirm the installed version.
Apply the patched version released by the theme vendor as referenced in the Patchstack advisory.
Rotate WordPress secrets and database credentials if exploitation is suspected.

Patch Information

Users should upgrade the Deliciosa theme to a version newer than 1.10.0. Consult the vendor advisory and Patchstack record for the fixed release. If a patched version is not yet available, deactivate the theme until remediation is published.

Workarounds

Deploy a Web Application Firewall (WAF) rule blocking traversal sequences and suspicious file parameters targeting theme endpoints.
Restrict PHP open_basedir and allow_url_include directives to limit the scope of file inclusion.
Remove or disable the Deliciosa theme on sites that cannot be patched immediately.

bash

# Example WAF rule concept (ModSecurity) - adapt to your environment
SecRule REQUEST_URI "@contains /wp-content/themes/deliciosa/" \
  "chain,deny,status:403,id:1069121,msg:'CVE-2025-69121 Deliciosa LFI attempt'"
  SecRule ARGS "@rx (\.\./|%2e%2e%2f|wp-config\.php|/etc/passwd)" "t:lowercase,t:urlDecodeUni"