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Description

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.

PUBLISHED Reserved 2026-04-20 | Published 2026-04-20 | Updated 2026-04-20 | Assigner VulDB




MEDIUM: 5.1CVSS: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
MEDIUM: 4.7CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R
MEDIUM: 4.7CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R
5.8AV:N/AC:L/Au:M/C:P/I:P/A:P/E:POC/RL:ND/RC:UR

Problem types

Unrestricted Upload

Improper Access Controls

Timeline

2026-04-20:Advisory disclosed
2026-04-20:VulDB entry created
2026-04-20:VulDB entry last update

Credits

qingyunsec (VulDB User) reporter

VulDB CNA Team coordinator

References

vuldb.com/vuln/358284 (VDB-358284 | Z-BlogPHP ZBA File app_upload.php UnPack unrestricted upload) vdb-entry technical-description

vuldb.com/vuln/358284/cti (VDB-358284 | CTI Indicators (IOB, IOC, TTP, IOA)) signature permissions-required

vuldb.com/submit/793451 (Submit #793451 | Z-Blog Z-BlogPHP 1.7.5 Upload any file) third-party-advisory

github.com/qingyun985/Cyber-Security/issues/3 exploit issue-tracking

cve.org (CVE-2026-6650)

nvd.nist.gov (CVE-2026-6650)

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