What is CVE-2021-47788?

CVE-2021-47788 is a high-severity vulnerability in Websitebaker, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 8.8/10. Published 2026-01-16.

How severe is CVE-2021-47788?

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

Arbitrary file upload in Websitebaker

CVE-2021-47788

WebsiteBaker 2.13.0 contains an authenticated remote code execution vulnerability that allows users with language editing permissions to execute arbitrary code. Attackers can exploit the language installation endpoint by manipulating language installation parameters to achieve remote code execution on the server.

Vulnerability class: Unrestricted File Upload

EPSS: 0.009 (56.8th 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

Websitebaker — versions 2.13.0

Weakness classification (CWE)

CWE-434 — Unrestricted Upload of File with Dangerous Type

References

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

Frequently asked questions

What is CVE-2021-47788?: CVE-2021-47788 is a high-severity vulnerability in Websitebaker, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 8.8/10. Published 2026-01-16.
How severe is CVE-2021-47788?: High severity. CVSS v3 base score is 8.8 out of 10.