CVE-2025-10913: TemizlikYolda XSS Vulnerability

CVE-2025-10913 Overview

CVE-2025-10913 is a Cross-Site Scripting (XSS) vulnerability affecting TemizlikYolda, a web application developed by Saastech Cleaning and Internet Services Inc. The vulnerability stems from improper neutralization of user-supplied input during web page generation, allowing attackers to inject malicious scripts into web pages viewed by other users. This flaw enables various attack scenarios including session hijacking, credential theft, and malicious content delivery through the affected application.

Critical Impact

Authenticated attackers can exploit this XSS vulnerability to compromise user sessions, steal sensitive information, and perform actions on behalf of victims. The vendor was contacted about this disclosure but did not respond.

Affected Products

• TemizlikYolda through version 11022026
• Saastech Cleaning and Internet Services Inc. web platform

Discovery Timeline

• 2026-02-11 - CVE-2025-10913 published to NVD
• 2026-02-11 - Last updated in NVD database

Technical Details for CVE-2025-10913

Vulnerability Analysis

This Cross-Site Scripting (XSS) vulnerability (CWE-79) occurs when the TemizlikYolda application fails to properly sanitize or encode user-controlled input before incorporating it into dynamically generated web pages. When malicious input containing JavaScript or HTML is submitted and subsequently rendered in a user's browser, the injected code executes within the security context of the vulnerable application.

The vulnerability is network-accessible and requires low privileges to exploit, meaning an authenticated user with minimal access rights can leverage this flaw. Once exploited, an attacker can achieve significant impact on both data integrity and system availability, while also potentially accessing confidential information.

Root Cause

The root cause of CVE-2025-10913 is inadequate input validation and output encoding within the TemizlikYolda application. User-supplied data is incorporated into HTML responses without proper sanitization, allowing script tags and event handlers to be interpreted as executable code by victim browsers. This represents a fundamental failure in secure coding practices where untrusted input must be treated as potentially malicious.

Attack Vector

The attack vector is network-based, allowing remote exploitation by authenticated users. An attacker can craft malicious URLs or form submissions containing JavaScript payloads. When these payloads are processed by the application and rendered in another user's browser, the malicious script executes with the permissions of the victim's session.

The exploitation mechanism typically involves injecting script content through vulnerable input fields or URL parameters. When a victim user accesses a page containing the injected payload, their browser executes the malicious code, potentially leading to:

• Session token theft through document.cookie access
• Keylogging and credential harvesting
• Defacement of page content
• Redirection to phishing sites
• Execution of actions on behalf of the victim

Detection Methods for CVE-2025-10913

Indicators of Compromise

• Unusual JavaScript execution patterns in web application logs
• Presence of encoded script tags (<script>, %3Cscript%3E) in request parameters or form submissions
• Suspicious outbound connections from client browsers to unknown external domains
• Reports of users experiencing unexpected behavior or redirects when using TemizlikYolda

Detection Strategies

• Implement Web Application Firewall (WAF) rules to detect and block common XSS payload patterns
• Monitor HTTP request logs for encoded script injection attempts and suspicious character sequences
• Deploy browser-based Content Security Policy (CSP) violation reporting to identify XSS attempts
• Enable client-side JavaScript error monitoring to detect anomalous script execution

Monitoring Recommendations

• Review application access logs for requests containing script tags, event handlers, and encoded HTML entities
• Monitor for unusual patterns of cookie access or session token extraction
• Implement real-time alerting for CSP violations in the TemizlikYolda application
• Track user reports of suspicious behavior or unexpected page modifications

How to Mitigate CVE-2025-10913

Immediate Actions Required

• Restrict access to the TemizlikYolda application to only essential users until patches are available
• Implement a Web Application Firewall (WAF) with XSS protection rules in front of the application
• Deploy Content Security Policy (CSP) headers to restrict script execution sources
• Educate users to avoid clicking suspicious links related to the TemizlikYolda platform

Patch Information

No official patch information is available at this time. According to the security advisory, the vendor (Saastech Cleaning and Internet Services Inc.) was contacted early about this disclosure but did not respond. Organizations should monitor the USOM Security Notification TR-26-0055 for any updates regarding official fixes.

Workarounds

• Implement strict input validation on all user-controllable fields using server-side allowlist filtering
• Apply context-appropriate output encoding (HTML entity encoding, JavaScript escaping) for all dynamic content
• Deploy HTTP response headers including Content-Security-Policy, X-XSS-Protection, and X-Content-Type-Options
• Consider isolating the TemizlikYolda application behind additional network security controls until the vendor provides a fix

# Example Content Security Policy header configuration for Apache
# Add to .htaccess or httpd.conf
Header set Content-Security-Policy "default-src 'self'; script-src 'self'; style-src 'self' 'unsafe-inline'; img-src 'self' data:; object-src 'none'; frame-ancestors 'self';"
Header set X-XSS-Protection "1; mode=block"
Header set X-Content-Type-Options "nosniff"