Vulnerability in Max-3000 Maxsite_cms

CVE-2021-27983

Remote Code Execution (RCE) vulnerability exists in MaxSite CMS v107.5 via the Documents page.

EPSS: 0.035 (87.8th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2021-27983?
CVE-2021-27983 is a critical-severity vulnerability in Max-3000 Maxsite_cms. CVSS score: 9.8/10. Published 2021-12-10.
How severe is CVE-2021-27983?
Critical severity. CVSS v3 base score is 9.8 out of 10.
Is CVE-2021-27983 known to be exploited?
2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.