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CVE-2019-19634: class.upload.php in verot.net omits .pht from the set of dangerous file extensions

February 28, 2020 (updated July 21, 2026)

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.

References

  • github.com/advisories/GHSA-2gc7-w4hw-rr2m
  • github.com/jra89/CVE-2019-19634
  • github.com/verot/class.upload.php/blob/2.0.4/src/class.upload.php
  • medium.com/%40jra8908/cve-2019-19634-arbitrary-file-upload-in-class-upload-php-ccaf9e13875e
  • medium.com/@jra8908/cve-2019-19634-arbitrary-file-upload-in-class-upload-php-ccaf9e13875e
  • nvd.nist.gov/vuln/detail/CVE-2019-19634

Code Behaviors & Features

Detect and mitigate CVE-2019-19634 with GitLab Dependency Scanning

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Affected versions

All versions up to 1.0.3, all versions starting from 2.0.0 up to 2.0.4

Solution

Unfortunately, there is no solution available yet.

Impact 9.8 CRITICAL

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Learn more about CVSS

Weakness

  • CWE-434: Unrestricted Upload of File with Dangerous Type

Source file

packagist/verot/class.upload.php/CVE-2019-19634.yml

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