Injection Vulnerability in HRConvert2 by Zelon88
CVE-2026-44666

9.3CRITICAL

Key Information:

Vendor

Zelon88

Status
Hrconvert2
Vendor
CVE Published:
14 May 2026

What is CVE-2026-44666?

The HRConvert2 application, a self-hosted file conversion server by Zelon88, contains a vulnerability due to the improper handling of user input in the sanitizeString() function. Versions prior to 3.3.8 allow backtick (`) and tab ( ) characters to be processed, leading to potential command execution through the shell_exec() function. This can compromise the functionality of the server, making it crucial for users to upgrade to version 3.3.8 or later to mitigate this risk.

Affected Version(s)

HRConvert2 < 3.3.8

References

https://github.com/zelon88/HRConvert2/security/advisories...
x_refsource_CONFIRM
https://github.com/zelon88/HRConvert2/releases/tag/v3.3.8
x_refsource_MISC

CVSS V4

Score:
9.3
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.