Vulnerability · Published Apr 20, 2026 · Assigned by VulDB

CVE-2026-6650Z-BlogPHP ZBA File app_upload.php UnPack unrestricted upload

Medium 4.7

In plain English

A medium-severity unrestricted file upload in Z-BlogPHP. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 13% of all known vulnerabilities).

Severity (CVSS 3.1)4.7Medium

Exploit odds (30 days)0.2%top 87.0% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official 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.

Affected products (as reported)

Vendor	Product	Versions
n/a	Z-BlogPHP	1.7.5

Weakness: CWE-434, CWE-284 · 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

References

VDB-358284 | Z-BlogPHP ZBA File app_upload.php UnPack unrestricted upload vdb-entry, technical-description
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
https://github.com/qingyun985/Cyber-Security/issues/3 exploit, issue-tracking