What is CVE-2021-36233?

CVE-2021-36233 is a medium-severity vulnerability in Unit4 Mik.starlight, classified under Files or Directories Accessible to External Parties. CVSS score: 6.5/10. Published 2021-08-31.

How severe is CVE-2021-36233?

Medium severity. CVSS v3 base score is 6.5 out of 10.

Vulnerability in Unit4 Mik.starlight

CVE-2021-36233

The function AdminGetFirstFileContentByFilePath in MIK.starlight 7.9.5.24363 allows (by design) an authenticated attacker to read arbitrary files from the filesystem by specifying the file path.

Published 2021-08-31 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N.

EPSS exploit prediction

EPSS: 0.010 (61.6th percentile), scored 2026-09-30.

Low probability of exploitation in the next 30 days, but still tracked. 62nd percentile — 61.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.010 · newest: 0.010 · change: 0.000

Affected products

Unit4 Mik.starlight — versions 7.9.5.24363

Weakness classification (CWE)

CWE-552 — Files or Directories Accessible to External Parties

References

www.syss.de/fileadmin/dokumente/Publikationen/Advisories/SYSS-2021-037.txt (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2021-36233?: CVE-2021-36233 is a medium-severity vulnerability in Unit4 Mik.starlight, classified under Files or Directories Accessible to External Parties. CVSS score: 6.5/10. Published 2021-08-31.
How severe is CVE-2021-36233?: Medium severity. CVSS v3 base score is 6.5 out of 10.