CVE-2026-4509

A security flaw has been discovered in PbootCMS up to 3.2.12. This affects an unknown function of the file core/function/file.php of the component File Upload. The manipulation of the argument black results in incomplete blacklist. The attack may be launched remotely. The exploit has been released to the public and may be used for attacks.

CVSS v3 6.3 MEDIUM
CVSS v2.0 6.5 MEDIUM

6.3^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 3.4

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact LOW

Scope UNCHANGED

6.5^/10

CVSS v2.0 : MEDIUM

Vector : AV:N/AC:L/Au:S/C:P/I:P/A:P

Exploitability : 8.0 / Impact : 6.4

Access Vector NETWORK

Access Complexity LOW

Authentication SINGLE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

References

Link	Resource
https://github.com/zzj-create/cvetest/blob/main/VULN-04_DANGEROUS_FILE_UPLOAD_REPORT_EN.md
https://vuldb.com/?ctiid.352075
https://vuldb.com/?id.352075
https://vuldb.com/?submit.773901

Configurations

No configuration.

History

21 Mar 2026, 06:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-03-21 06:16

Updated : 2026-03-23 14:31

NVD link : CVE-2026-4509

Mitre link : CVE-2026-4509

CVE.ORG link : CVE-2026-4509

JSON object : View

Products Affected

No product.

CWE

CWE-183

Permissive List of Allowed Inputs

CWE-184

Incomplete List of Disallowed Inputs

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