Platform
php
Component
cve_submit
Fixed in
1.0.1
CVE-2026-3812 describes a cross-site scripting (XSS) vulnerability discovered in itsourcecode Payroll Management System version 1.0. This flaw allows attackers to inject malicious scripts into the application via manipulation of the ID argument within the /manageemployeeallowances.php file. Successful exploitation could lead to session hijacking, data theft, or defacement of the application. The vulnerability has been publicly disclosed.
An attacker can exploit this XSS vulnerability by crafting a malicious URL containing a specially crafted ID parameter. When a user with sufficient privileges accesses this URL, the injected script will execute in their browser context. This could allow the attacker to steal session cookies, redirect the user to a phishing site, or modify the content displayed on the page. The potential impact extends to sensitive employee data stored within the Payroll Management System, including salary information, personal details, and banking information. Lateral movement within the network is possible if the attacker gains access to administrative accounts.
This vulnerability has been publicly disclosed, increasing the risk of exploitation. There is no indication of it being added to the CISA KEV catalog at this time. Public proof-of-concept (POC) code is likely to emerge, making exploitation easier for less sophisticated attackers. The CVSS score of 4.3 (Medium) indicates a moderate probability of exploitation.
Exploit Status
EPSS
0.03% (9% percentile)
CISA SSVC
CVSS Vector
The primary mitigation for CVE-2026-3812 is to upgrade to a patched version of itsourcecode Payroll Management System. Since a fixed version is not specified, immediate action is required. As a temporary workaround, implement strict input validation on the ID parameter in the /manageemployeeallowances.php file to sanitize user-supplied data. Deploy a Web Application Firewall (WAF) with rules to detect and block XSS attempts targeting this specific endpoint. Regularly review and update WAF rules to adapt to evolving attack techniques. Consider implementing Content Security Policy (CSP) to restrict the sources from which scripts can be executed.
Update to a patched version of the payroll management system. Contact the vendor for the corrected version or apply necessary security measures to prevent the execution of malicious scripts on the client side.
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CVE-2026-3812 is a cross-site scripting (XSS) vulnerability affecting itsourcecode Payroll Management System version 1.0, allowing attackers to inject malicious scripts via the /manageemployeeallowances.php file.
If you are using itsourcecode Payroll Management System version 1.0, you are potentially affected. Upgrade is the recommended solution.
Upgrade to a patched version of itsourcecode Payroll Management System. As a temporary workaround, implement input validation and WAF rules.
The vulnerability has been publicly disclosed, increasing the likelihood of exploitation. Active exploitation is possible.
Check the itsourcecode website and security mailing lists for updates and advisories related to CVE-2026-3812.
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