Overview
CVE-2025-13802 describes a cross-site scripting (XSS) vulnerability found in jairiidriss RestaurantWebsite. This vulnerability affects an unknown function within the “Make a Reservation” component. A malicious actor can exploit this weakness by manipulating the `selected_date` argument, injecting arbitrary JavaScript code into the website, and potentially compromising user data or website functionality. The vendor has not responded to disclosure attempts, making mitigation challenging. The product uses continuous delivery with rolling releases, making version identification difficult.
Technical Details
The vulnerability resides within the “Make a Reservation” functionality of jairiidriss RestaurantWebsite. Specifically, the `selected_date` parameter is not properly sanitized, allowing an attacker to inject malicious JavaScript code. This injected code is then executed in the context of a user’s browser when they interact with the vulnerable part of the website. The public exploit leverages this unsanitized input to execute arbitrary scripts. The affected code is located within the component responsible for handling reservations, and the attack can be initiated remotely.
CVSS Analysis
This vulnerability has been assigned a CVSS score of 4.3, indicating a MEDIUM severity. The CVSS vector suggests the following:
- Attack Vector (AV): Network (N) – The attack can be initiated remotely.
- Attack Complexity (AC): Low (L) – The attack is relatively easy to execute.
- Privileges Required (PR): None (N) – No privileges are required to exploit the vulnerability.
- User Interaction (UI): Required (R) – User interaction is required for the exploit to be successful (e.g., clicking a link).
- Scope (S): Changed (C) – An exploited vulnerability can affect resources beyond the security scope managed by the security authority of the vulnerable component.
- Confidentiality Impact (C): None (N) – There is no impact to confidentiality.
- Integrity Impact (I): Low (L) – There is limited integrity impact.
- Availability Impact (A): None (N) – There is no impact to availability.
Possible Impact
Successful exploitation of this XSS vulnerability can have several negative consequences:
- Session Hijacking: Attackers could steal user session cookies, gaining unauthorized access to user accounts.
- Defacement: The website could be defaced, damaging the restaurant’s reputation.
- Malware Distribution: Malicious scripts could redirect users to websites hosting malware.
- Phishing: Users could be tricked into entering sensitive information on fake login pages.
Mitigation or Patch Steps
Given the vendor’s lack of response and the use of continuous delivery, applying a direct patch is currently not possible. Website administrators should implement the following mitigation strategies:
- Input Validation: Implement strict input validation and sanitization on all user-supplied data, especially the `selected_date` parameter. Sanitize HTML entities and escape special characters.
- Output Encoding: Encode all data before displaying it on the website to prevent the execution of malicious scripts.
- Web Application Firewall (WAF): Deploy a Web Application Firewall (WAF) to detect and block XSS attacks. Configure the WAF with rules to filter potentially malicious input.
- Content Security Policy (CSP): Implement a strong Content Security Policy (CSP) to restrict the sources from which the browser can load resources. This can significantly reduce the impact of XSS attacks.
- Regular Monitoring: Continuously monitor the website for suspicious activity and potential exploitation attempts.
