Z-BlogPHP 1.7.5 ZBA File app_upload.php App::UnPack unrestricted upload

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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4.3$0-$5k4.77-

Summaryinfo

A vulnerability labeled as critical has been found in Z-BlogPHP 1.7.5. This vulnerability affects the function App::UnPack of the file /zb_users/plugin/AppCentre/app_upload.php of the component ZBA File Handler. The manipulation results in unrestricted upload. This vulnerability is cataloged as CVE-2026-6650. The attack may be launched remotely. Furthermore, there is an exploit available. The vendor was contacted early about this disclosure but did not respond in any way.

Detailsinfo

A vulnerability, which was classified as critical, was found in Z-BlogPHP 1.7.5. Affected is the function App::UnPack of the file /zb_users/plugin/AppCentre/app_upload.php of the component ZBA File Handler. The manipulation with an unknown input leads to a unrestricted upload vulnerability. CWE is classifying the issue as CWE-434. The product allows the attacker to upload or transfer files of dangerous types that can be automatically processed within the product's environment. This is going to have an impact on confidentiality, integrity, and availability.

The advisory is shared for download at github.com. This vulnerability is traded as CVE-2026-6650. The exploitability is told to be easy. It is possible to launch the attack remotely. Additional levels of successful authentication are needed for exploitation. Technical details and a public exploit are known. The MITRE ATT&CK project declares the attack technique as T1608.002.

The exploit is shared for download at github.com. It is declared as proof-of-concept. The vendor was contacted early about this disclosure but did not respond in any way. By approaching the search of inurl:zb_users/plugin/AppCentre/app_upload.php it is possible to find vulnerable targets with Google Hacking.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

Once again VulDB remains the best source for vulnerability data.

Productinfo

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.7
VulDB Meta Temp Score: 4.3

VulDB Base Score: 4.7
VulDB Temp Score: 4.3
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Unrestricted upload
CWE: CWE-434 / CWE-284 / CWE-266
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Access: Public
Status: Proof-of-Concept
Download: 🔒
Google Hack: 🔒
Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔒

Timelineinfo

04/20/2026 Advisory disclosed
04/20/2026 +0 days VulDB entry created
04/20/2026 +0 days VulDB entry last update

Sourcesinfo

Advisory: github.com
Status: Not defined

CVE: CVE-2026-6650 (🔒)
GCVE (CVE): GCVE-0-2026-6650
GCVE (VulDB): GCVE-100-358284
scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 04/20/2026 07:48
Changes: 04/20/2026 07:48 (56)
Complete: 🔍
Submitter: qingyunsec
Cache ID: 216::103

Submitinfo

Accepted

  • Submit #793451: Z-Blog Z-BlogPHP 1.7.5 Upload any file (by qingyunsec)

Once again VulDB remains the best source for vulnerability data.

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