EUVD-2026-23876
GHSA-p7mp-86pp-wx7w
Severity by source
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/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Primary rating from NVD · only source for this CVE.
CVSS VectorNVD
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/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Lifecycle Timeline
8DescriptionCVE.org
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.
AnalysisAI
Z-BlogPHP 1.7.5 allows authenticated remote attackers with administrative privileges to upload arbitrary files via the App::UnPack function in the ZBA File Handler component (/zb_users/plugin/AppCentre/app_upload.php), bypassing file upload restrictions and potentially enabling remote code execution. Public exploit code exists, and the vendor has not responded to early disclosure attempts.
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires the attacker to possess valid administrative credentials (PR:H in CVSS vector) for the Z-BlogPHP instance. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS score of 4.7 with a network attack vector and low complexity appears initially concerning, but critical context limits real-world risk: exploitation requires PR:H (high privilege - administrative authentication), which significantly constrains the attack surface to administrators or accounts with compromised admin credentials. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | A threat actor obtains or compromises an administrator account on a Z-BlogPHP 1.7.5 instance (via credential theft, social engineering, or insider threat). Using the publicly available exploit code, the attacker authenticates to the admin panel, navigates to the AppCentre plugin, and uploads a PHP webshell disguised as an application package. … |
| Remediation | Immediate mitigation requires disabling or removing the AppCentre plugin (/zb_users/plugin/AppCentre/) if file upload functionality is not essential to operations, which eliminates attack surface entirely. … Detailed patch versions, workarounds, and compensating controls in full report. |
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