---
id: CVE-2019-19576
title: >-
  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.
summary: >-
  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.
severity: critical
cvss: 9.8
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'
cwe:
  - CWE-434
vendor: verot_project
product: verot
affected:
  - verot < 1.0.3
  - 'verot >= 2.0.0, < 2.0.4'
  - k2 <= 2.10.1
patched:
  - verot 2.0.4
published: '2019-12-04'
updated: '2026-06-26'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2019-19576'
references:
  - url: >-
      http://packetstormsecurity.com/files/155577/Verot-2.0.3-Remote-Code-Execution.html
    label: cve@mitre.org
  - url: >-
      https://github.com/getk2/k2/commit/d1344706c4b74c2ae7659b286b5a066117155124
    label: cve@mitre.org
  - url: 'https://github.com/jra89/CVE-2019-19576'
    label: cve@mitre.org
  - url: >-
      https://github.com/verot/class.upload.php/commit/5a7505ddec956fdc9e9c071ae5089865559174f1
    label: cve@mitre.org
  - url: >-
      https://github.com/verot/class.upload.php/commit/db1b4fe50c1754696970d8b437f07e7b94a7ebf2
    label: cve@mitre.org
  - url: 'https://github.com/verot/class.upload.php/compare/1.0.2...1.0.3'
    label: cve@mitre.org
  - url: 'https://github.com/verot/class.upload.php/compare/2.0.3...2.0.4'
    label: cve@mitre.org
  - url: 'https://medium.com/%40jra8908/cve-2019-19576-e9da712b779'
    label: cve@mitre.org
  - url: 'https://www.verot.net'
    label: cve@mitre.org
  - url: 'https://www.verot.net/php_class_upload.htm'
    label: cve@mitre.org
  - url: >-
      http://packetstormsecurity.com/files/155577/Verot-2.0.3-Remote-Code-Execution.html
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: >-
      https://github.com/getk2/k2/commit/d1344706c4b74c2ae7659b286b5a066117155124
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: 'https://github.com/jra89/CVE-2019-19576'
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: >-
      https://github.com/verot/class.upload.php/commit/5a7505ddec956fdc9e9c071ae5089865559174f1
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: >-
      https://github.com/verot/class.upload.php/commit/db1b4fe50c1754696970d8b437f07e7b94a7ebf2
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: 'https://github.com/verot/class.upload.php/compare/1.0.2...1.0.3'
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: 'https://github.com/verot/class.upload.php/compare/2.0.3...2.0.4'
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: 'https://medium.com/%40jra8908/cve-2019-19576-e9da712b779'
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: 'https://www.verot.net'
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: 'https://www.verot.net/php_class_upload.htm'
    label: af854a3a-2127-422b-91ae-364da2661108
tags:
  - nvd
  - exploit-available
epss: 0.2638
epssPercentile: 0.97916
exploitAvailable: true
ingestedAt: '2026-06-26T16:43:13.349Z'
exploits:
  exploitdb: true
  github: 1
  githubRepos:
    - 'https://github.com/jra89/CVE-2019-19576'
  checkedAt: '2026-09-24T07:52:46.864Z'
---

## Overview

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.

## Affected

- `verot < 1.0.3`
- `verot >= 2.0.0, < 2.0.4`
- `k2 <= 2.10.1`

## Remediation

Upgrade past the affected range:

- `verot 2.0.4`