CVE-2025-53632 — CRITICAL (9.1)

Q: How severe is CVE-2025-53632?

CVE-2025-53632 has been rated CRITICAL with a CVSS base score of 9.1/10. This is considered a critical vulnerability requiring immediate attention.

Q: Is there a patch for CVE-2025-53632?

Check the references section above for vendor advisories and patch information. Affected products include: Ctfer-Io Chall-Manager.

Vulnerability Description

Chall-Manager is a platform-agnostic system able to start Challenges on Demand of a player. When decoding a scenario (i.e. a zip archive), the path of the file to write is not checked, potentially leading to zip slips. Exploitation does not require authentication nor authorization, so anyone can exploit it. It should nonetheless not be exploitable as it is highly recommended to bury Chall-Manager deep within the infrastructure due to its large capabilities, so no users could reach the system. Patch has been implemented by commit 47d188f and shipped in v0.1.4.

CVSS Score

9.1

CRITICAL

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

NONE

Integrity

HIGH

Availability

HIGH

Affected Products

Vendor	Product	Versions
Ctfer-Io	Chall-Manager	< 0.1.4

Related Weaknesses (CWE)

CWE-22

References

FAQ

What is CVE-2025-53632?

CVE-2025-53632 is a vulnerability with a CVSS score of 9.1 (CRITICAL). Chall-Manager is a platform-agnostic system able to start Challenges on Demand of a player. When decoding a scenario (i.e. a zip archive), the path of the file to write is not checked, potentially lea...

How severe is CVE-2025-53632?

CVE-2025-53632 has been rated CRITICAL with a CVSS base score of 9.1/10. This is considered a critical vulnerability requiring immediate attention.

Is there a patch for CVE-2025-53632?

Check the references section above for vendor advisories and patch information. Affected products include: Ctfer-Io Chall-Manager.