What is CVE-2021-45808?

CVE-2021-45808 is a high-severity vulnerability in Jpress, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 8.8/10. Published 2022-01-19.

How severe is CVE-2021-45808?

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

Arbitrary file upload in Jpress

CVE-2021-45808

jpress v4.2.0 allows users to register an account by default. With the account, user can upload arbitrary files to the server.

Vulnerability class: Unrestricted File Upload

Published 2022-01-19 · last modified 2026-07-09.

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: 0.013 (69.4th percentile), scored 2026-09-30.

Low probability of exploitation in the next 30 days, but still tracked. 69th percentile — 69.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.013 · newest: 0.013 · change: 0.000

Affected products

Jpress — versions 4.2.0

Weakness classification (CWE)

CWE-434 — Unrestricted Upload of File with Dangerous Type

References

af854a3a-2127-422b-91ae-364da2661108 (Product, Vendor Advisory)
github.com/JPressProjects/jpress (Product, Third Party Advisory)
github.com/JPressProjects/jpress/issues/173 (Exploit, Third Party Advisory, Issue Tracking)

Frequently asked questions

What is CVE-2021-45808?: CVE-2021-45808 is a high-severity vulnerability in Jpress, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 8.8/10. Published 2022-01-19.
How severe is CVE-2021-45808?: High severity. CVSS v3 base score is 8.8 out of 10.