CVE-2026-6650

Z-BlogPHP ZBA File app_upload.php UnPack unrestricted upload

Assigner: VulDB
Reserved: 20.04.2026 Published: 20.04.2026 Updated: 20.04.2026

A vulnerability was identified in Z-BlogPHP 1.7.5. This affects the function App::UnPack of the file /zb_users/plugin/AppCentre/app_upload.php of the component ZBA File Handler. The manipulation leads to unrestricted upload. The attack may be initiated remotely. The exploit is publicly available and might be used. The vendor was contacted early about this disclosure but did not respond in any way.

Metrics

CVSS Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P
CVSS Score: 5.1

Exploitability Metrics		Vulnerable System Impact Metrics		Subsequent System Impact Metrics
Attack Vector	Network	Confidentiality	Low	Confidentiality	None
Attack Complexity	Low	Integrity	Low	Integrity	None
Attack Requirements	None	Availability	Low	Availability	None
Privileges Required	High
User Interaction	None

CVSS 4.0

CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R
CVSS Score: 4.7

Attack Vector	Network	Scope	Unchanged
Attack Complexity	Low	Confidentiality Impact	Low
Privileges Required	High	Integrity Impact	Low
User Interaction	None	Availability Impact	Low

CVSS 3.1

CVSS Vector: CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R
CVSS Score: 4.7

Attack Vector	Network	Scope	Unchanged
Attack Complexity	Low	Confidentiality Impact	Low
Privileges Required	High	Integrity Impact	Low
User Interaction	None	Availability Impact	Low

CVSS 3.0

CVSS Vector: AV:N/AC:L/Au:M/C:P/I:P/A:P/E:POC/RL:ND/RC:UR
CVSS Score: 5.8

Access Vector	Network	Confidentiality Impact	Partial
Access Complexity	Low	Integrity Impact	Partial
Authentication	Multiple	Availability Impact	Partial

CVSS 2.0

Product Status

Vendor	n/a
Product	Z-BlogPHP
Versions	Version 1.7.5 is affected

Vendor

n/a

Product

Z-BlogPHP

Versions

Version 1.7.5 is affected

Credits

qingyunsec (VulDB User) reporter
VulDB CNA Team coordinator

References

Problem Types