CVE-2021-25856

Name: CVE-2021-25856
Creator: NVD / NIST
Published: 2023-08-11T14:15:12.047+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 4.9/10EPSS 0.46%

Last modified Jun 17, 2026

CVE-2021-25856 is a medium-severity vulnerability rated 4.9/10 on the CVSS scale. An issue was discovered in pcmt superMicro-CMS version 3.11, allows attackers to delete files via crafted image file in images.php.. EPSS estimates a 0.46% chance of exploitation in the next 30 days.

Description

An issue was discovered in pcmt superMicro-CMS version 3.11, allows attackers to delete files via crafted image file in images.php.

Metrics

CVSS 3.1

4.9/10

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

EPSS Probability

0.46%

36.3th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

Vendor	Product	Versions
Supermicro-Cms Project	Supermicro-Cms	3.11

References

https://github.com/pcmt/superMicro-CMS/issues/1Exploit, Issue Tracking
https://github.com/pcmt/superMicro-CMS/issues/1Exploit, Issue Tracking

Timeline

Published: Aug 11, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-25856?

An issue was discovered in pcmt superMicro-CMS version 3.11, allows attackers to delete files via crafted image file in images.php.

How severe is CVE-2021-25856?

CVE-2021-25856 has a CVSS score of 4.9/10 (MEDIUM severity). The EPSS model estimates a 0.46% probability of exploitation in the next 30 days.

How do I fix CVE-2021-25856?

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-2021-25856?

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

Scan your code now

Source: NVD / NIST