Authenticated dangerous-file upload via downurl parameter
Published Mar 17, 2023 · Updated Nov 22, 2024
Unrestricted file upload in Meizhou Qingyunke QYKCMS 4.3.0 allows remote authenticated users to upload dangerous files. /admin_system/api.php accepts attacker-controlled downurl input without restricting dangerous file types; the exact server-side operation is undisclosed. Administrative access is required, and successful exploitation writes attacker-chosen files into the application's environment.
Summary
What happened
Unrestricted file upload in Meizhou Qingyunke QYKCMS 4.3.0 allows remote authenticated users to upload dangerous files. /admin_system/api.php accepts attacker-controlled downurl input without restricting dangerous file types; the exact server-side operation is undisclosed. Administrative access is required, and successful exploitation writes attacker-chosen files into the application's environment.
The record
- CVE
- CVE-2023-1442
- Published
- Mar 17, 2023
- Updated
- Nov 22, 2024
- Vendor
- Meizhou Qingyunke Network Technology Co., Ltd.
- Product
- QYKCMS
- Classifications
- CWE-434, T1105
- Attack vector
- network
- Privileges
- admin
Timeline
How it unfolded
- Mar 17, 2023CVE publishedPublication date reported by the CVE source.
- Nov 22, 2024Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=4.3.0
What conditions does exploitation require?
What is affected?
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
- QYKCMS file-upload proof of conceptproof of concept · unverified
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Technologies
Your stack
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Your stack
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