What is CVE-2022-50898?

CVE-2022-50898 is a high-severity vulnerability in Kalyan02 Nanocms, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 8.8/10. Published 2026-01-13.

How severe is CVE-2022-50898?

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

Arbitrary file upload in Kalyan02 Nanocms

CVE-2022-50898

NanoCMS 0.4 contains an authenticated file upload vulnerability that allows remote code execution through unvalidated page content creation. Authenticated attackers can upload PHP files with arbitrary code to the server's pages directory b…

Vulnerability class: Unrestricted File Upload

EPSS: 0.011 (61.9th percentile) — read the EPSS interpretation.

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.

Affected products

Kalyan02 Nanocms — versions 0.4

Weakness classification (CWE)

CWE-434 — Unrestricted Upload of File with Dangerous Type

References

disclosure@vulncheck.com (Exploit, exploit)
disclosure@vulncheck.com (Product, product)
disclosure@vulncheck.com (Third Party Advisory, exploit)
disclosure@vulncheck.com (Third Party Advisory, third-party-advisory)

Frequently asked questions

What is CVE-2022-50898?: CVE-2022-50898 is a high-severity vulnerability in Kalyan02 Nanocms, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 8.8/10. Published 2026-01-13.
How severe is CVE-2022-50898?: High severity. CVSS v3 base score is 8.8 out of 10.