class.upload up to 1.0.2 on Joomla class.upload.php unrestricted upload

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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A vulnerability has been found in class.upload up to 1.0.2 on Joomla (Joomla Component) and classified as critical. This vulnerability affects an unknown functionality of the file class.upload.php. The manipulation with an unknown input leads to a unrestricted upload vulnerability. The CWE definition for the vulnerability is 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. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

class.upload.php in class.upload before 1.0.3 and 2.x before 2.0.4, as used in the K2 extension for Joomla! and other products, omits .phar from the set of dangerous file extensions.

The weakness was released 12/04/2019. This vulnerability was named CVE-2019-19576 since 12/04/2019. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. Technical details and also a public exploit are known. This vulnerability is assigned to T1608.002 by the MITRE ATT&CK project.

A public exploit has been developed by Jinny Ramsmark in PHP and been published 2 days after the advisory. It is possible to download the exploit at It is declared as proof-of-concept. By approaching the search of inurl:class.upload.php it is possible to find vulnerable targets with Google Hacking.

Upgrading to version 1.0.3 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at Exploit-DB (47749). Entry connected to this vulnerability is available at VDB-147316.







CPE 2.3info

CPE 2.2info


VulDB CVSS-B Score: 🔍
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VulDB Meta Base Score: 9.8
VulDB Meta Temp Score: 9.3

VulDB Base Score: 9.8
VulDB Temp Score: 8.8
VulDB Vector: 🔍
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NVD Base Score: 9.8
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Class: Unrestricted upload
CWE: CWE-434 / CWE-284 / CWE-266

Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Author: Jinny Ramsmark
Programming Language: 🔍
Download: 🔍
Google Hack: 🔍

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Exploit-DB: 🔍

Threat Intelligenceinfo

Interest: 🔍
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Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍
Exploit Delay Time: 🔍

Upgrade: class.upload 1.0.3


12/04/2019 🔍
12/04/2019 +0 days 🔍
12/05/2019 +1 days 🔍
12/06/2019 +1 days 🔍
03/07/2024 +1553 days 🔍


Advisory: 155577
Status: Not defined

CVE: CVE-2019-19576 (🔍)
scip Labs:
See also: 🔍


Created: 12/05/2019 08:34 AM
Updated: 03/07/2024 01:59 PM
Changes: 12/05/2019 08:34 AM (37), 12/08/2019 06:07 PM (2), 12/08/2019 06:08 PM (23), 03/07/2024 01:59 PM (9)
Complete: 🔍
Committer: misc
Cache ID: 44:4C4:40


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