CVE-2025-8255
Published: 28 July 2025
Summary
CVE-2025-8255 is a high-severity Improper Access Control (CWE-284) vulnerability in Code-Projects Exam Form Submission. Its CVSS base score is 7.3 (High).
Operationally, exploitation aligns with the MITRE ATT&CK technique Exploit Public-Facing Application (T1190); ranked at the 30.4th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.
Threat & Defense at a Glance
Threat & Defense Details
Likely Mitigating ControlsAI
Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.
This control enforces ownership-based restrictions on portable storage device use, directly implementing access control over media insertion into organizational systems.
Hardware write-protect enforces access control on critical resources (e.g., firmware) independent of software state.
The access control policy and procedures directly mandate and enforce proper access control mechanisms across the organization.
Device lock enforces restricted access until re-authentication, directly reducing unauthorized use of active sessions.
Supervision and review of access control activities directly detects and remediates improper access configurations or usages.
Explicitly identifying and documenting actions permitted without identification or authentication enforces proper access control boundaries by defining justified exceptions.
By automatically labeling outputs with security attributes, the control supports attribute-based enforcement and reduces exploitability of improper access control weaknesses.
Associating and retaining security attributes with data directly supports enforcement of access control decisions across storage, processing, and transmission.
MITRE ATT&CK Enterprise TechniquesAI
Why these techniques?
Unrestricted file upload vulnerability in public-facing web application (/register.php) allows remote exploitation (T1190) and deployment of executable PHP web shells in web-accessible directories for remote code execution and persistence (T1100, T1505.003).
NVD Description
A vulnerability was found in code-projects Exam Form Submission 1.0. It has been rated as critical. This issue affects some unknown processing of the file /register.php. The manipulation of the argument image leads to unrestricted upload. The attack may be…
more
initiated remotely. The exploit has been disclosed to the public and may be used.
Deeper analysisAI
CVE-2025-8255 is a critical vulnerability in code-projects Exam Form Submission 1.0, affecting unknown processing in the /register.php file. The issue enables unrestricted file upload through manipulation of the "image" argument and is linked to CWE-284 (Improper Access Control) and CWE-434 (Unrestricted Upload of File with Dangerous Type). Published on 2025-07-28, it carries a CVSS v3.1 base score of 7.3 (AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L).
Remote attackers can exploit this vulnerability without privileges, user interaction, or high complexity. Successful exploitation allows limited impacts on confidentiality, integrity, and availability, potentially enabling malicious file uploads.
Advisories detail the issue on VulDB (ctiid.317843, id.317843, submit.623444), with a GitHub issue at Dingzenggonpo/cve/issues/4 and the project site at code-projects.org. The exploit has been publicly disclosed and may be used, but no specific patches or mitigations are outlined in the available references.
Details
- CWE(s)