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CVE-2023-25655 — Vulnerability in baserproject/basercms — CVE Details

CRITICAL

baserCMS allows any file to be uploaded

Published March 23, 2023Updated September 10, 2026Source: osv

Summary

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.

Advisory Timeline

  • First published March 23, 2023 (1299 days ago).
  • Last revised September 10, 2026 — 1266 days after initial publication.

Remediation

Upgrade to the fixed version using your package manager.

Composer
Update baserproject/basercms to 4.7.5 or later
composer require "baserproject/basercms:^4.7.5"

After upgrading, run your dependency scanner again to confirm the vulnerability is resolved.

Affected Packages (1)

Affects 1 ecosystem: packagist (1).

PackageEcosystemAffectedFixed In
baserproject/basercms
packagist
0.0.1, 0.0.2, 0.0.3, 0.0.4 (+104 more)4.7.5

Vulnerability Classification

Common Weakness Enumeration (CWE) identifiers for this vulnerability type.

  • CWE-434
    Unrestricted File UploadMITRE

CVSS Score Breakdown

What the CVSS (Common Vulnerability Scoring System) 9.8 score means for each attack dimension.

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

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

References

Frequently Asked Questions

What is CVE-2023-25655?
baserCMS allows any file to be uploaded This vulnerability has been assigned a severity rating of CRITICAL (CVSS score: 9.8/10).
How do I check if my project is affected by CVE-2023-25655?
CVE-2023-25655 affects baserproject/basercms. Use GeekWala's free vulnerability scanner to check your dependencies against CVE-2023-25655 and 200,000+ other known vulnerabilities.

Severity & Exploitability

CVSS Score
9.8

Exploitation is straightforward and causes maximum impact. Patch immediately.

Also Known As

GHSA-mfvg-qwcw-qvc8

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