What is CVE-2022-4018?

CVE-2022-4018 is a medium-severity vulnerability in Ikus060 Ikus060/rdiffweb, classified under Missing Authentication for Critical Function. CVSS score: 4.3/10. Published 2022-11-16.

How severe is CVE-2022-4018?

Medium severity. CVSS v3 base score is 4.3 out of 10.

Auth bypass in Ikus060 Ikus060/rdiffweb

CVE-2022-4018

Missing Authentication for Critical Function in GitHub repository ikus060/rdiffweb prior to 2.5.0a6.

Vulnerability class: Broken Authentication

Published 2022-11-16 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L.

EPSS exploit prediction

EPSS: 0.009 (57.2th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 57th percentile — 57.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.008 · newest: 0.009 · change: +0.000

Affected products

Ikus060 Ikus060/rdiffweb — versions unspecified
Ikus-Soft Rdiffweb — versions 2.5.0

Weakness classification (CWE)

CWE-306 — Missing Authentication for Critical Function

References

github.com/ikus060/rdiffweb/commit/f2a32f2a9f3fb8be1a9432ac3d81d3aacdb13095 (Patch, Third Party Advisory)
huntr.dev/bounties/5340c2f6-0252-40f6-8929-cca5d64958a5 (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2022-4018?: CVE-2022-4018 is a medium-severity vulnerability in Ikus060 Ikus060/rdiffweb, classified under Missing Authentication for Critical Function. CVSS score: 4.3/10. Published 2022-11-16.
How severe is CVE-2022-4018?: Medium severity. CVSS v3 base score is 4.3 out of 10.