CVE-2026-4509

PbootCMS File Upload file.php incomplete blacklist

State: Published
Severity: 5.3 Medium
Published: Mar 21, 2026
Updated: Mar 24, 2026
Reserved: Mar 20, 2026

Description

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.

Scores

CVSS	Score	Vector	Source
4.0	5.3 Medium	CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P	VulDB
3.1	6.3 Medium	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R	VulDB
3.0	6.3 Medium	CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R	VulDB
2.0	6.5 Medium	AV:N/AC:L/Au:S/C:P/I:P/A:P/E:POC/RL:ND/RC:UR	VulDB

Weaknesses

CWE-184 Incomplete Blacklist
CWE-183 Permissive List of Allowed Inputs

Affected Products

Product	Versions
PbootCMSn/a	3.2.0Affected 3.2.1Affected 3.2.2Affected 3.2.3Affected 3.2.4Affected 3.2.5Affected 3.2.6Affected 3.2.7Affected 3.2.8Affected 3.2.9Affected 3.2.10Affected 3.2.11Affected 3.2.12Affected

References

VDB-352075 | PbootCMS File Upload file.php incomplete blacklistvdb-entrytechnical-description
VDB-352075 | CTI Indicators (IOB, IOC, TTP, IOA)signaturepermissions-required
Submit #773901 | 翱云科技 PbootCMS 3.2.12 Incomplete Identification of Uploaded File Variablesthird-party-advisory
https://github.com/zzj-create/cvetest/blob/main/VULN-04_DANGEROUS_FILE_UPLOAD_REPORT_EN.mdexploit

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