CVE-2021-41279

Name: CVE-2021-41279
Creator: NVD / NIST
Published: 2021-11-26T18:15:07.32+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8.8/10EPSS 1.57%

Last modified Jun 17, 2026

CVE-2021-41279 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. BaserCMS is an open source content management system with a focus on Japanese language support. In affected versions users with upload privilege may upload crafted zip files capable of path traversal on the host operating system. EPSS estimates a 1.57% chance of exploitation in the next 30 days.

Description

BaserCMS is an open source content management system with a focus on Japanese language support. In affected versions users with upload privilege may upload crafted zip files capable of path traversal on the host operating system. 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.

Metrics

CVSS 3.1

8.8/10

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

EPSS Probability

1.57%

72.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-22

Affected Software

Vendor	Product	Versions
Basercms	Basercms	< 4.5.4

References

https://github.com/baserproject/basercms/commit/d8ab0a81a7bce35cc95ff7dff851a7e87a084336Patch, Third Party Advisory
https://github.com/baserproject/basercms/security/advisories/GHSA-4x2f-54wr-4hjgThird Party Advisory
https://github.com/baserproject/basercms/commit/d8ab0a81a7bce35cc95ff7dff851a7e87a084336Patch, Third Party Advisory
https://github.com/baserproject/basercms/security/advisories/GHSA-4x2f-54wr-4hjgThird Party Advisory

Timeline

Published: Nov 26, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-41279?

How severe is CVE-2021-41279?

CVE-2021-41279 has a CVSS score of 8.8/10 (HIGH severity). The EPSS model estimates a 1.57% probability of exploitation in the next 30 days.

How do I fix CVE-2021-41279?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2021-41279?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST