What is CVE-2021-4080?

CVE-2021-4080 is a high-severity vulnerability in Craterapp Crater, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 8.8/10. Published 2022-01-12.

How severe is CVE-2021-4080?

High severity. CVSS v3 base score is 8.8 out of 10.

Arbitrary file upload in Craterapp Crater

CVE-2021-4080

crater is vulnerable to Unrestricted Upload of File with Dangerous Type

Vulnerability class: Unrestricted File Upload

Published 2022-01-12 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.015 (72.8th percentile), scored 2026-09-30.

Low probability of exploitation in the next 30 days, but still tracked. 73rd percentile — 72.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.015 · newest: 0.015 · change: 0.000

Affected products

Craterapp Crater
Crater-Invoice Crater-Invoice/crater — versions unspecified

Weakness classification (CWE)

CWE-434 — Unrestricted Upload of File with Dangerous Type

References

huntr.dev/bounties/d7453360-baca-4e56-985f-481275fa38db (Exploit, Patch, Third Party Advisory)
github.com/crater-invoice/crater/commit/cdc913d16cf624aee852bc9163a7c6ffc8d1da9d (Patch, Third Party Advisory)

Frequently asked questions

What is CVE-2021-4080?: CVE-2021-4080 is a high-severity vulnerability in Craterapp Crater, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 8.8/10. Published 2022-01-12.
How severe is CVE-2021-4080?: High severity. CVSS v3 base score is 8.8 out of 10.