Arbitrary file upload in Ulearn Project

CVE-2023-0670

Ulearn version a5a7ca20de859051ea0470542844980a66dfc05d allows an attacker with administrator permissions to obtain remote code execution on the server through the image upload functionality. This occurs because the application does not validate that the uploaded image is actually an image.

Vulnerability class: Unrestricted File Upload

Published · last modified .

CVSS v3 metric

CVSS v3 base score 7.2 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.010 (62.2th percentile), scored .

Low probability of exploitation in the next 30 days, but still tracked. 62nd percentile — 62.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2023-0670: held from 0.010 to 0.010.

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

Affected products

  • Ulearn Project
  • Ulearn — versions a5a7ca20de859051ea0470542844980a66dfc05d

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2023-0670?
CVE-2023-0670 is a high-severity vulnerability in Ulearn Project, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 7.2/10. Published 2023-04-05.
How severe is CVE-2023-0670?
High severity. CVSS v3 base score is 7.2 out of 10.