What is the CVSS score of CVE-2026-30558?

CVE-2026-30558 has a CVSS 3.1 base score of 6.1 (Medium). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N. EPSS exploitation probability: 0.1%.

Is there a public PoC exploit available for CVE-2026-30558?

Yes, a public proof-of-concept exploit is available for CVE-2026-30558. Prioritise patching immediately. EPSS: 0.1%.

PHP CVE-2026-30558

EUVD-2026-17097 MEDIUM

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

2026-03-30 mitre

GHSA-xcvp-qwq2-j64h

PHP XSS

6.1

CVSS 3.1

CVSS VectorNVD

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Changed

Confidentiality

Low

Integrity

Low

Availability

None

Lifecycle Timeline

PoC Detected

Apr 06, 2026 - 14:16 vuln.today

Public exploit code

EUVD ID Assigned

Mar 30, 2026 - 16:00 euvd

EUVD-2026-17097

Analysis Generated

Mar 30, 2026 - 16:00 vuln.today

CVE Published

Mar 30, 2026 - 00:00 nvd

MEDIUM 6.1

DescriptionNVD

A Reflected Cross-Site Scripting (XSS) vulnerability exists in SourceCodester Sales and Inventory System 1.0. The vulnerability is located in the add_customer.php file via the "msg" parameter. The application fails to sanitize the input, allowing remote attackers to inject arbitrary web script or HTML via a crafted URL.

AnalysisAI

Reflected cross-site scripting in SourceCodester Sales and Inventory System 1.0 allows remote attackers to inject arbitrary JavaScript or HTML through an unsanitized 'msg' parameter in add_customer.php, enabling session hijacking, credential theft, or malware distribution via crafted URLs. Publicly available exploit code exists demonstrating the vulnerability.

Analysis

Detailed AI-generated intelligence summary covering attack vector, impact assessment, affected versions, remediation steps, and indicators of compromise.

POChttps://••••••••••.com/exploit

PATCHhttps://••••••••••.com/patch

ADVISORYhttps://••••••••••.com/advisory

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CVE-2026-30558 vulnerability details – vuln.today

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