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baserCMS allows any file to be uploaded

Critical severity GitHub Reviewed Published Mar 23, 2023 in baserproject/basercms • Updated Mar 28, 2023

Package

composer baserproject/basercms (Composer)

Affected versions

< 4.7.5

Patched versions

4.7.5

Description

There is a vulnerability that allows uploading any files to baserCMS.

This is a vulnerability that needs to be addressed when the management system is used by an unspecified number of users.
If you are eligible, please update to the new version as soon as possible.

Target

baserCMS 4.7.3 and earlier versions

Vulnerability

Malicious files may be uploaded in Upload File Management.

Countermeasures

Update to the latest version of baserCMS

Please refer to the following page to reference for more information.
https://basercms.net/security/JVN_61105618

Credits

  • Taisei Inoue@GMO Cybersecurity by Ierae, Inc.
  • Yusuke Akagi@Mitsui Bussan Secure Directions, Inc.

References

@ryuring ryuring published to baserproject/basercms Mar 23, 2023
Published to the GitHub Advisory Database Mar 23, 2023
Reviewed Mar 23, 2023
Published by the National Vulnerability Database Mar 23, 2023
Last updated Mar 28, 2023

Severity

Critical

CVSS overall score

This score calculates overall vulnerability severity from 0 to 10 and is based on the Common Vulnerability Scoring System (CVSS).
/ 10

CVSS v3 base metrics

Attack vector
Network
Attack complexity
Low
Privileges required
None
User interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS v3 base metrics

Attack vector: More severe the more the remote (logically and physically) an attacker can be in order to exploit the vulnerability.
Attack complexity: More severe for the least complex attacks.
Privileges required: More severe if no privileges are required.
User interaction: More severe when no user interaction is required.
Scope: More severe when a scope change occurs, e.g. one vulnerable component impacts resources in components beyond its security scope.
Confidentiality: More severe when loss of data confidentiality is highest, measuring the level of data access available to an unauthorized user.
Integrity: More severe when loss of data integrity is the highest, measuring the consequence of data modification possible by an unauthorized user.
Availability: More severe when the loss of impacted component availability is highest.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS score

0.172%
(55th percentile)

Weaknesses

CVE ID

CVE-2023-25655

GHSA ID

GHSA-mfvg-qwcw-qvc8

Source code

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