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CVE-2026-30877

HIGHCVSS 7.2/10EPSS 1.52%

Last modified

CVE-2026-30877 is a high-severity vulnerability rated 7.2/10 on the CVSS scale. baserCMS is a website development framework. Prior to version 5.2.3, there is an OS command injection vulnerability in the update functionality. EPSS estimates a 1.52% chance of exploitation in the next 30 days.

Description

baserCMS is a website development framework. Prior to version 5.2.3, there is an OS command injection vulnerability in the update functionality. Due to this issue, an authenticated user with administrator privileges in baserCMS can execute arbitrary OS commands on the server with the privileges of the user account running baserCMS. This issue has been patched in version 5.2.3.

Metrics

CVSS 3.1
7.2/10

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

EPSS Probability
1.52%

71.3th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
BasercmsBasercms< 5.2.3

References

Timeline

Published
Last Modified
Status
Analyzed

Frequently Asked Questions

What is CVE-2026-30877?
baserCMS is a website development framework. Prior to version 5.2.3, there is an OS command injection vulnerability in the update functionality. Due to this issue, an authenticated user with administrator privileges in baserCMS can execute arbitrary OS commands on the server with the privileges of the user account running baserCMS. This issue has been patched in version 5.2.3.
How severe is CVE-2026-30877?
CVE-2026-30877 has a CVSS score of 7.2/10 (HIGH severity). The EPSS model estimates a 1.52% probability of exploitation in the next 30 days.
How do I fix CVE-2026-30877?
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-2026-30877?

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

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Source: NVD / NIST