CVE-2025-7817: Stored XSS Vulnerability in PHPGurukul Apartment Visitors Management System

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CVE-2025-7817: Stored XSS Vulnerability in PHPGurukul Apartment Visitors Management System

Stay informed about a security vulnerability (CVE-2025-7817) discovered in PHPGurukul Apartment Visitors Management System 1.0. This post provides a detailed analysis of the vulnerability, its potential impact, and recommended mitigation steps.

Vulnerability Details

  • CVE ID: CVE-2025-7817
  • Description: A stored cross-site scripting (XSS) vulnerability has been identified in PHPGurukul Apartment Visitors Management System 1.0. The vulnerability exists within the /bwdates-reports.php file, specifically through the manipulation of the visname argument in an HTTP POST request.
  • CVSS Score:
    • CVSS v3.1: 3.5 (LOW) - AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N
    • CVSS v4.0: 5.1 (MEDIUM) - CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

    Explanation: The CVSS v3.1 score indicates a low severity vulnerability because while it's network accessible and easy to exploit, it requires a logged-in user to click something malicious. The CVSS v4.0 score is slightly higher (Medium) due to incorporating factors like exploit maturity and attack requirements but still reflects a limited impact on confidentiality and availability. An attacker needs to trick a user into interacting with the malicious content.

  • Exploit Requirements: An attacker needs to be authenticated with low privileges and needs to induce a user to interact with the malicious payload.
  • Affected Vendor, Product, Version: PHPGurukul Apartment Visitors Management System 1.0
  • CWE: CWE-79 (Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')) and CWE-94 (Improper Control of Generation of Code ('Code Injection')).

    Explanation: CWE-79 means that the application doesn't properly sanitize user-supplied data before displaying it in a web page, allowing an attacker to inject malicious scripts. CWE-94 extends this to a broader category of code injection flaws.

Timeline of Events

  • 2025-07-19: Vulnerability reported and CVE ID assigned.
  • 2025-07-19: Proof-of-concept exploit publicly disclosed.

Exploitability & Real-World Risk

The vulnerability is exploitable remotely by an authenticated attacker. The attacker can inject malicious JavaScript code into the visname field. When a user views the report containing the injected script, the script will execute in their browser. This can lead to session hijacking, defacement, or redirection to malicious websites. Given that the application manages visitors, a successful attack could compromise sensitive visitor data and potentially the system as a whole.

Recommendations

  • Patch: Apply the latest security patches provided by PHPGurukul (if available).
  • Input Validation: Implement robust input validation and sanitization on all user-supplied data, especially the visname field.
  • Output Encoding: Encode all output data before displaying it in the web page to prevent the execution of malicious scripts.
  • Web Application Firewall (WAF): Deploy a WAF to detect and block XSS attacks.
  • Principle of Least Privilege: Ensure that user accounts have only the necessary privileges to perform their tasks.

Technical Insight

The root cause of the vulnerability is the lack of proper input sanitization and output encoding. The application accepts the visname argument without validating or sanitizing it. When this data is displayed in the /bwdates-reports.php page, the injected JavaScript code is executed by the browser. Proper input validation and output encoding would prevent the execution of malicious scripts.

Credit to Researcher(s)

This vulnerability was discovered by HieuGITLAB.

References

Tags

#XSS #CVE-2025-7817 #PHPGurukul #WebSecurity #Vulnerability #StoredXSS

Summary: A stored cross-site scripting (XSS) vulnerability has been identified in PHPGurukul Apartment Visitors Management System 1.0. An attacker can inject malicious JavaScript code into the 'visname' field via the `/bwdates-reports.php` page. When a user views the report, the injected script will execute, potentially leading to session hijacking or defacement. Apply the latest security patches and implement proper input validation to mitigate this risk.

CVE ID: CVE-2025-7817

Risk Analysis: Successful exploitation of this vulnerability could allow an attacker to steal user cookies, deface the website, or redirect users to malicious websites. This could lead to data breaches and reputational damage.

Recommendation: Apply the latest security patches provided by PHPGurukul. Implement robust input validation and output encoding to prevent the execution of malicious scripts.

Timeline

  • 2025-07-19: Vulnerability reported and CVE ID assigned.
  • 2025-07-19: Proof-of-concept exploit publicly disclosed.

References

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