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Simple Laundry System CVE-2026-5541

| EUVDEUVD-2026-19032 LOW
Cross-site Scripting (XSS) (CWE-79)
2026-04-05 VulDB
2.1
CVSS 4.0 · Vendor: VulDB
View

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

Despite a moderate CVSS 3.1 score of 4.3 (AV:N/AC:L/PR:N/UI:R), real-world risk is elevated by the convergence of multiple signals: (1) publicly available exploit code reduces the exploitation barrier; (2) unauthenticated remote attack vector (PR:N, AV:N) allows any internet user to craft malicious requests; (3) low attack complexity (AC:L) requires no special techniques; (4) the UI:R component (user interaction required) is the primary limiting factor but is common in social engineering scenarios. The CVSS Exploitation metric (E:P) reflects proof-of-concept availability. For a legacy PHP application managing laundry system accounts, XSS can enable credential theft, session hijacking, or unauthorized administrative actions. The real risk depends on whether Simple Laundry System instances are internet-facing and whether userid values can be stored (persistent XSS) versus merely reflected (reflected XSS).

Exploit ScenarioDerived

An attacker crafts a malicious URL containing JavaScript payload in the userid parameter (e.g., /modmemberinfo.php?userid=<script>alert('XSS')</script>) and tricks a system administrator or user into clicking the link via phishing email or social engineering. When the user visits the page, the injected script executes in their browser with their session privileges, potentially stealing their authentication cookie or performing unauthorized actions (e.g., modifying member information, escalating privileges). The existence of public exploit code in the referenced GitHub issue (https://github.com/boyslikesports/vul-web/issues/3) reduces the barrier for opportunistic attackers to weaponize this vulnerability.

Monitor Track and reassess. Why: LOW severity (CVSS 0.1-3.9).
No patch listed yet 0.0% exploitation probability (EPSS)

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AnalysisAIv1 – Apr 05, 2026

Stored or reflected cross-site scripting (XSS) in code-projects Simple Laundry System 1.0 allows remote attackers to inject malicious scripts via the userid parameter in /modmemberinfo.php, potentially compromising user sessions or stealing sensitive data. The vulnerability requires user interaction (UI:R) and publicly available exploit code exists, elevating the practical risk despite the moderate CVSS 4.3 score.

RemediationAI

Apply a vendor-released security patch if available from code-projects (https://code-projects.org/); however, no specific patched version number is confirmed in available data. Immediate interim controls should include: (1) implement strict input validation on the userid parameter to reject or encode special characters (< > " ' &); (2) apply HTML entity encoding or output escaping to all reflected userid values before rendering in HTML context; (3) deploy a Web Application Firewall (WAF) rule to block requests containing script tags in userid parameters; (4) implement Content Security Policy (CSP) headers with appropriate directives to prevent inline script execution; (5) consider deprecating Simple Laundry System 1.0 in favor of a maintained alternative if the vendor does not release patches promptly. Monitor code-projects.org for security advisories.

Affected VersionsENISA

Simple Laundry System 1.0

Affected Packages

euvd simple_laundry_system no fix

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 stems from improper input validation in the Parameter Handler component of Simple Laundry System, a PHP-based web application (CWE-79: Improper Neutralization of Input During Web Page Generation). The /modmemberinfo.php file fails to sanitize or encode the userid parameter before rendering it in the HTML response, allowing attackers to inject arbitrary JavaScript code. This is a classic XSS flaw affecting PHP applications that handle user-controlled input without proper output encoding or Content Security Policy controls.

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  • Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

Vendor (VulDB) PRIMARY 2.1 LOW
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 Vendor (VulDB) · only source for this CVE.

CVSS VectorVendor: VulDB

Attack Vector
Network
Attack Complexity
Low
Attack Requirements
None
Privileges Required
None
User Interaction
Passive
Vulnerable system: Confidentiality
None
Vulnerable system: Integrity
Low
Vulnerable system: Availability
None
Subsequent system: Confidentiality
None
Subsequent system: Integrity
None
Subsequent system: Availability
None

Lifecycle Timeline

4
Severity Changed
Apr 29, 2026 - 01:11 NVD
MEDIUM LOW
CVSS changed
Apr 29, 2026 - 01:11 NVD
5.3 (MEDIUM) 2.1 (LOW)
PoC Detected
Apr 07, 2026 - 13:20 vuln.today
Public exploit code
CVE Published
Apr 05, 2026 - 04:00 nvd
MEDIUM 5.3

DescriptionCVE.org

A vulnerability was found in code-projects Simple Laundry System 1.0. This issue affects some unknown processing of the file /modmemberinfo.php of the component Parameter Handler. Performing a manipulation of the argument userid results in cross site scripting. The attack may be initiated remotely. The exploit has been made public and could be used.

Threat Intelligence Overview

EPSS Score
0.0%
Top 91% exploitable
Exploit
POC
Public exploit code exists
Social Media
1
Sightings
Data Quality
8 sources
Confidence: High
EUVD NVD CVE.org EPSS Vulnrichment CIRCL GitHub 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.

SignalValue
Severity LOW
CISA KEV No
Public POC Yes
EPSS 0.0%
Patch available No
Active threat No
Deciding rule
LOW severity (CVSS 0.1-3.9)
What every action level means
Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.
Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.
This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.
This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.
Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived
Scheduled
Exploitation
Poc
System Exposure· derived
Open
Automatable
Yes
Human Impact· derived
Low
Technical Impact
Partial

Priority Score

30
Low Medium High Critical
KEV: 0
EPSS: 0
CVSS: +10
PoC: +20
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

Cross-Site Scripting occurs when an application accepts untrusted data and sends it to a web browser without proper validation or encoding.

Related Vulnerabilities in Simple Laundry System SQL Injection and XSS

View all 4
CVE-2026-5565 MEDIUM POC
5.5 Apr 05

SQL injection in code-projects Simple Laundry System 1.0 allows unauthenticated remote attackers to execute arbitrary SQ

CVE-2026-5564 MEDIUM POC
5.5 Apr 05

SQL injection in code-projects Simple Laundry System 1.0 allows unauthenticated remote attackers to extract, modify, or

CVE-2026-4908 MEDIUM POC
5.5 Mar 27

SQL injection in code-projects Simple Laundry System 1.0 allows unauthenticated remote attackers to extract, modify, or

CVE-2026-4850 MEDIUM POC
5.5 Mar 26

SQL injection in Simple Laundry System 1.0's /checkregisitem.php parameter handler allows unauthenticated remote attacke

CVE-2026-4784 MEDIUM POC
5.5 Mar 25

SQL injection in Simple Laundry System 1.0 PHP application allows unauthenticated remote attackers to execute arbitrary

CVE-2026-4581 MEDIUM POC
5.5 Mar 23

SQL injection in Simple Laundry System 1.0's /checklogin.php parameter handler allows unauthenticated remote attackers t

CVE-2026-4580 MEDIUM POC
5.5 Mar 23

SQL injection in Simple Laundry System 1.0's /checkupdatestatus.php parameter handler allows unauthenticated remote atta

CVE-2026-4579 MEDIUM POC
5.5 Mar 23

SQL injection in Simple Laundry System 1.0 through the serviceId parameter in /viewdetail.php allows unauthenticated rem

CVE-2025-5766 LOW POC
2.1 Jun 06

Cross-site request forgery in code-projects Laundry System 1.0 allows an attacker to perform unauthorized actions on beh

CVE-2026-6150 LOW POC
2.1 Apr 13

Cross-site scripting (XSS) in code-projects Simple Laundry System 1.0 allows remote attackers to inject arbitrary script

CVE-2026-6032 LOW POC
2.1 Apr 10

Reflected cross-site scripting (XSS) in code-projects Simple Laundry System 1.0 allows unauthenticated remote attackers

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