Arbitrary file upload in Z-blogphp
CVE-2026-6650
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…
EPSS: 0.000 (15.0th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 4.7 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L.
Affected products
- N/a Z-blogphp — versions 1.7.5
Weakness classification (CWE)
References
- VDB-358284 | Z-BlogPHP ZBA File app_upload.php UnPack unrestricted upload (technical-description, vdb-entry)
- VDB-358284 | CTI Indicators (IOB, IOC, TTP, IOA) (signature, permissions-required)
- Submit #793451 | Z-Blog Z-BlogPHP 1.7.5 Upload any file (third-party-advisory)
- cna@vuldb.com (issue-tracking, exploit)
Frequently asked questions
- What is CVE-2026-6650?
- CVE-2026-6650 is a medium-severity vulnerability in Z-blogphp, classified under Improper Access Control. CVSS score: 4.7/10. Published 2026-04-20.
- How severe is CVE-2026-6650?
- Medium severity. CVSS v3 base score is 4.7 out of 10.