Medium severity · published Jul 17, 2025
CVE-2025-53927
MaxKB sandbox bypass
6.3
CVSS
0.3%
EPSS
No
On KEV
Description
MaxKB is an open-source AI assistant for enterprise. Prior to version 2.0.0, the sandbox design rules can be bypassed because MaxKB only restricts the execution permissions of files in a specific directory. Therefore, an attacker can use the `shutil.copy2` method in Python to copy the command they want to execute to the executable directory. This bypasses directory restrictions and reverse shell. Version 2.0.0 fixes the issue.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:L
Attack vector
Local
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
Low
Integrity
Low
Availability
Low
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 19% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
MA
MaxKB · 1Panel-dev
< 2.0.0 · source: vendor, NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-53927
CVE.org
https://www.cve.org/CVERecord?id=CVE-2025-53927
Release Notes
https://github.com/1Panel-dev/MaxKB/releases/tag/v2.0.0
Exploit
https://github.com/1Panel-dev/MaxKB/security/advisories/GHSA-5xhm-4j3v-87m4
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