Is there a public PoC exploit available for CVE-2026-5836?

Yes, a public proof-of-concept exploit is available for CVE-2026-5836. Prioritise patching immediately. EPSS: 0.0%.

PHP CVE-2026-5836

Q: What is the CVSS score of CVE-2026-5836?

CVE-2026-5836 has a CVSS 4.0 base score of 1.9 (Low). CVSS vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:H/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. EPSS exploitation probability: 0.0%.

EUVD-2026-20835 LOW

Cross-site Scripting (XSS) (CWE-79)

2026-04-09 VulDB

GHSA-pg87-8q7g-m8pp

XSS PHP

1.9

CVSS 4.0 · NVD

Severity by source

NVD PRIMARY

1.9 LOW

CVSS:4.0/AV:N/AC:L/AT:N/PR:H/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:H/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

High

User Interaction

Scope

Lifecycle Timeline

Severity Changed

Apr 29, 2026 - 01:11 NVD

MEDIUM LOW

CVSS changed

Apr 29, 2026 - 01:11 NVD

4.8 (MEDIUM) 1.9 (LOW)

PoC Detected

Apr 09, 2026 - 04:17 vuln.today

Public exploit code

EUVD ID Assigned

Apr 09, 2026 - 03:30 euvd

EUVD-2026-20835

Analysis Generated

Apr 09, 2026 - 03:30 vuln.today

CVE Published

Apr 09, 2026 - 03:00 nvd

MEDIUM 4.8

DescriptionCVE.org

A vulnerability has been found in code-projects Online Shoe Store 1.0. Affected by this issue is some unknown functionality of the file /admin/admin_product.php. The manipulation of the argument product_name leads to cross site scripting. The attack can be initiated remotely. The exploit has been disclosed to the public and may be used.

AnalysisAI

Stored cross-site scripting (XSS) in code-projects Online Shoe Store 1.0 allows authenticated administrators to inject malicious scripts via the product_name parameter in /admin/admin_product.php, affecting other users who view the product data. The vulnerability requires high-privilege admin access and user interaction (clicking/viewing), limiting immediate risk, but publicly available exploit code exists and the issue has been disclosed. …

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Vulnerability AssessmentAI

Risk Assessment	This vulnerability presents minimal real-world risk despite public exploit availability. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in.
Exploit Scenario	An attacker with compromised or legitimately obtained administrator credentials logs into the Online Shoe Store admin panel and navigates to the product management page (/admin/admin_product.php). The attacker enters a crafted product name containing JavaScript, such as 'Shoe<img src=x onerror="alert('XSS')" />', in the product_name field and submits the form. …
Remediation	Implement proper input validation and output encoding for the product_name parameter in /admin/admin_product.php. … Detailed patch versions, workarounds, and compensating controls in full report.

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CVE-2026-5836 vulnerability details – vuln.today

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PHP CVE-2026-5836

Severity by source

CVSS VectorNVD

Lifecycle Timeline

DescriptionCVE.org

AnalysisAI

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Vulnerability AssessmentAI

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External POC / Exploit Code