CVE-2019-19576 Remote code execution in verot/class.upload.php

What is CVE-2019-19576?

CVE-2019-19576 is a critical vulnerability in n/a, published on 4 Dec 2019. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

class.upload.php in verot.net 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.

Weakness: CWE-434

Which versions are affected by CVE-2019-19576?

4 open source packages ship an affected version, including verot/class.upload.php. It affects 2 products.

Products include Joomlaworks K2, Verot Project Verot.

How do I fix CVE-2019-19576?

Upgrade verot/class.upload.php to a fixed version for your release line: 1.0.3 or 2.0.4.

Is CVE-2019-19576 being exploited?

There is no known exploitation of CVE-2019-19576 in the wild and no public exploit code.

Public exploit code: 1 Exploit-DB entry and 1 proofs of concept on GitHub.

Other vulnerabilities in n/a

• CVE-2019-19634 class.upload.php in verot.net omits .pht from the set of dangerous file extensions Critical 9.8
• CVE-2018-7482 Path traversal in n/a High 7.5
• CVE-2026-48941 Joomla Extension - getk2.org - Unauthenticated folder delete in K2 extension for Joomla < 2.26 Medium 6.5
• CVE-2026-48943 Joomla Extension - getk2.org - Authenticated user property mass-assignment in K2 extension for Joomla < 2.26 Medium 6.5
• CVE-2026-48944 Joomla Extension - getk2.org - Exposure of sensitive files via attachment copy in K2 extension for Joomla < 2.26 Medium 6.5

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-r5gm-4p5w-pq2p.