A cross-site scripting (XSS) vulnerability has been identified in Simple Laundry System version 1.0. This flaw resides within the /modify.php file's Parameter Handler component, specifically concerning the manipulation of the 'firstName' argument. Successful exploitation allows attackers to inject malicious scripts, potentially impacting user sessions and data integrity. A public proof-of-concept exists, increasing the risk of immediate exploitation.
The XSS vulnerability in Simple Laundry System allows an attacker to inject arbitrary JavaScript code into the application. This code can then be executed in the context of a victim's browser when they visit a crafted URL. An attacker could leverage this to steal session cookies, redirect users to malicious websites, or deface the application's appearance. The fact that the exploit is publicly available significantly increases the likelihood of widespread exploitation, potentially leading to data breaches and compromised user accounts. The remote nature of the attack means it can be launched from anywhere with network access to the vulnerable system.
CVE-2026-4849 has a publicly available proof-of-concept, indicating a relatively high probability of exploitation. The vulnerability was disclosed on 2026-03-26. It is not currently listed on CISA KEV, but the presence of a public exploit warrants close monitoring. Active campaigns targeting this vulnerability are possible given the ease of exploitation.
Exploit Status
EPSS
0.03% (10% percentile)
CISA SSVC
CVSS Vector
The primary mitigation for CVE-2026-4849 is to upgrade to a patched version of Simple Laundry System. Since no fixed version is specified, thoroughly review the vendor's release notes for updates addressing XSS vulnerabilities in the Parameter Handler. As an immediate workaround, implement Web Application Firewall (WAF) rules to filter out potentially malicious input in the 'firstName' parameter. Specifically, look for patterns indicative of JavaScript code injection. Additionally, consider input validation and sanitization on the server-side to prevent malicious code from being stored or processed. After applying mitigations, test the /modify.php endpoint with various input strings to confirm the vulnerability is no longer exploitable.
Update to a patched version or apply the necessary security measures to prevent code (XSS) injection. Validate and sanitize user inputs, especially the 'firstName' parameter in the '/modify.php' file.
Vulnerability analysis and critical alerts directly to your inbox.
CVE-2026-4849 is a cross-site scripting (XSS) vulnerability in Simple Laundry System version 1.0, allowing attackers to inject malicious scripts via the /modify.php file's 'firstName' parameter.
If you are running Simple Laundry System version 1.0, you are potentially affected. Review the vendor's release notes for updates addressing this vulnerability.
Upgrade to a patched version of Simple Laundry System. Implement WAF rules to filter malicious input as an immediate workaround.
A public proof-of-concept exists, suggesting a high probability of exploitation. Monitor your systems closely.
Refer to the Simple Laundry System vendor's website or security advisory page for the official advisory regarding CVE-2026-4849.
Upload your dependency file and we'll tell you instantly if this and other CVEs hit you.