CVE-2021-27280

Name: CVE-2021-27280
Creator: NVD / NIST
Published: 2023-05-08T14:15:10.64+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.8/10EPSS 0.97%

Last modified Jun 17, 2026

CVE-2021-27280 is a high-severity vulnerability rated 7.8/10 on the CVSS scale. OS Command injection vulnerability in mblog 3.5.0 allows attackers to execute arbitrary code via crafted theme when it gets selected.. EPSS estimates a 0.97% chance of exploitation in the next 30 days.

Description

OS Command injection vulnerability in mblog 3.5.0 allows attackers to execute arbitrary code via crafted theme when it gets selected.

Metrics

CVSS 3.1

7.8/10

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

EPSS Probability

0.97%

57.5th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Mblog Project	Mblog	3.5.0

References

https://github.com/langhsu/mblog/Product
https://github.com/langhsu/mblog/issues/44Exploit, Issue Tracking
https://github.com/langhsu/mblog/Product
https://github.com/langhsu/mblog/issues/44Exploit, Issue Tracking

Timeline

Published: May 8, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-27280?

OS Command injection vulnerability in mblog 3.5.0 allows attackers to execute arbitrary code via crafted theme when it gets selected.

How severe is CVE-2021-27280?

CVE-2021-27280 has a CVSS score of 7.8/10 (HIGH severity). The EPSS model estimates a 0.97% probability of exploitation in the next 30 days.

How do I fix CVE-2021-27280?

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-2021-27280?

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

Scan your code now

Source: NVD / NIST