CVE-2025-5765: Simple Laundry System XSS Vulnerability

CVE-2025-5765 Overview

CVE-2025-5765 is a cross-site scripting (XSS) vulnerability in code-projects Simple Laundry System 1.0. The flaw resides in /data/edit_laundry.php, where the Customer parameter is rendered without proper output encoding. An authenticated remote attacker can inject arbitrary JavaScript that executes in a victim's browser session when the manipulated record is viewed. The issue is classified under CWE-79 (Improper Neutralization of Input During Web Page Generation). The exploit has been disclosed publicly through VulDB Database Entry #311307 and a related GitHub CVE Issue Discussion.

Critical Impact
Successful exploitation allows attackers to execute arbitrary script in the context of an authenticated user's browser, enabling session token theft, credential harvesting through crafted forms, and unauthorized actions within the laundry management application.

Affected Products

code-projects Simple Laundry System 1.0
Component: /data/edit_laundry.php
Vulnerable parameter: Customer

Discovery Timeline

2025-06-06 - CVE-2025-5765 published to NVD
2026-06-17 - Last updated in NVD database

Technical Details for CVE-2025-5765

Vulnerability Analysis

The vulnerability is a reflected or stored cross-site scripting flaw in the edit workflow of the Simple Laundry System application. The edit_laundry.php script accepts a Customer argument through HTTP request parameters and writes that value back into the HTML response without contextual output encoding.

Because the application does not neutralize characters such as <, >, and ", attacker-supplied markup is interpreted by the browser as active script. The vulnerability requires low privileges and user interaction, according to the CVSS 4.0 vector, which aligns with an authenticated user needing to visit or trigger the affected page.

The scope of impact is limited to integrity within the vulnerable application. Confidentiality and availability metrics indicate no direct data disclosure or service disruption from the injection itself, though session-riding attacks remain feasible.

Root Cause

The root cause is missing input validation and output encoding on the Customer field before it is embedded in server-rendered HTML. The application trusts client-supplied data and does not apply functions such as htmlspecialchars() or context-aware escaping when rendering the record edit view.

Attack Vector

An attacker with a valid low-privilege account submits a crafted Customer value containing HTML or JavaScript through the edit workflow. When a legitimate user, including an administrator, loads the edit page for the tampered record, the browser executes the injected payload under the application's origin. See the GitHub CVE Issue Discussion for the disclosed proof-of-concept details.

Detection Methods for CVE-2025-5765

Indicators of Compromise

HTTP POST or GET requests to /data/edit_laundry.php containing angle brackets, script tags, or event handler attributes such as onerror= or onload= in the Customer parameter.
Database rows in the laundry records table containing HTML markup or JavaScript in the customer name column.
Web server access logs showing unusually long or URL-encoded payloads targeting the Customer field.

Detection Strategies

Deploy web application firewall rules that flag XSS payload patterns targeting edit_laundry.php request parameters.
Perform database content inspection for stored records containing HTML tags in fields that should hold plain text.
Correlate authenticated session activity with anomalous outbound requests originating from browser sessions that recently viewed laundry records.

Monitoring Recommendations

Enable verbose logging on the PHP application layer to capture the raw values submitted to /data/edit_laundry.php.
Monitor authenticated user sessions for cookie exfiltration attempts or suspicious cross-origin requests following record edits.
Alert on Content Security Policy (CSP) violation reports if a policy is deployed, as these indicate blocked inline script execution attempts.

How to Mitigate CVE-2025-5765

Immediate Actions Required

Restrict access to /data/edit_laundry.php to trusted administrative users until a fix is in place.
Sanitize existing database records to remove stored HTML or script content from customer name fields.
Deploy a strict Content Security Policy that disallows inline scripts to reduce exploitation impact.
Review authentication logs for unexpected low-privilege account activity that may have introduced malicious records.

Patch Information

At the time of publication, no official vendor patch is referenced in the NVD entry for CVE-2025-5765. The vendor page is available at code-projects.org. Track updates through the VulDB CTI Report #311307 and the VulDB Submission #590809 for remediation status.

Workarounds

Apply server-side output encoding using htmlspecialchars($value, ENT_QUOTES, 'UTF-8') when rendering the Customer value in PHP templates.
Add input validation that rejects non-alphanumeric characters in customer name fields at the form-handling layer.
Place the application behind a web application firewall configured with OWASP Core Rule Set signatures for reflected and stored XSS.
Enforce the HttpOnly and Secure flags on session cookies to limit the impact of injected script accessing authentication tokens.

bash

# Configuration example: Nginx WAF-style header hardening
add_header Content-Security-Policy "default-src 'self'; script-src 'self'; object-src 'none'";
add_header X-XSS-Protection "1; mode=block";
add_header X-Content-Type-Options "nosniff";