CVE-2026-24479

CRITICAL
2026-01-27 [email protected]
9.8
CVSS 3.1
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CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

Lifecycle Timeline

3
Analysis Generated
Mar 12, 2026 - 21:55 vuln.today
Patch Released
Mar 02, 2026 - 21:32 nvd
Patch available
CVE Published
Jan 27, 2026 - 01:16 nvd
CRITICAL 9.8

Tags

Linux PHP MySQL RCE Path Traversal Hustoj

Description

HUSTOF is an open source online judge based on PHP/C++/MySQL/Linux for ACM/ICPC and NOIP training. Prior to version 26.01.24, the problem_import_qduoj.php and problem_import_hoj.php modules fail to properly sanitize filenames within uploaded ZIP archives. Attackers can craft a malicious ZIP file containing files with path traversal sequences (e.g., ../../shell.php). When extracted by the server, this allows writing files to arbitrary locations in the web root, leading to Remote Code Execution (RCE). Version 26.01.24 contains a fix for the issue.

Analysis

HUSTOJ online judge has a path traversal vulnerability enabling arbitrary file access on the competition server.

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Remediation

Within 24 hours: Disable problem_import_qduoj.php and problem_import_hoj.php modules or restrict access to trusted administrators only. Within 7 days: Apply vendor patch to version 26.01.24 or later and test in staging environment. …

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Priority Score

50
Low Medium High Critical
KEV: 0
EPSS: +0.6
CVSS: +49
POC: 0

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CVE-2026-24479 vulnerability details – vuln.today
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