Authenticated code execution via unrestricted image upload
Published Jun 6, 2023 · Updated Jan 8, 2025
Unrestricted file upload in Sourcecodester Faculty Evaluation System 1.0 allows remote authenticated users to execute arbitrary code. The update_user action accepts a multipart img value and stores the supplied filename under eval/assets/uploads without blocking executable PHP content. Exploitation requires a Super Admin session; opening the uploaded PHP file through the web server runs attacker-supplied code with the application server's privileges.
Summary
What happened
Unrestricted file upload in Sourcecodester Faculty Evaluation System 1.0 allows remote authenticated users to execute arbitrary code. The update_user action accepts a multipart img value and stores the supplied filename under eval/assets/uploads without blocking executable PHP content. Exploitation requires a Super Admin session; opening the uploaded PHP file through the web server runs attacker-supplied code with the application server's privileges.
The record
- CVE
- CVE-2023-33569
- Published
- Jun 6, 2023
- Updated
- Jan 8, 2025
- Vendor
- Unknown vendor
- Product
- Unknown product
- Classifications
- CWE-434, T1190
- Attack vector
- network
- Privileges
- admin
Timeline
How it unfolded
- Jun 6, 2023CVE publishedPublication date reported by the CVE source.
- Jan 8, 2025Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
What conditions does exploitation require?
What is affected?
Affected products and versions are unavailable in this record.
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
- Faculty Evaluation System update_user file-upload proof of conceptproof of concept · demonstrated
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Technologies
Your stack
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Your stack
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