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
Published · last modified .
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: 0.010 (61.0th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 61st percentile — 61.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.009 · newest: 0.010 · change: +0.001
Affected products
- Websitebaker — versions 2.13.0
Weakness classification (CWE)
References
- www.exploit-db.com/exploits/50310 (Exploit, VDB Entry, exploit)
- websitebaker.org/ (Product, product)
- www.vulncheck.com/advisories/websitebaker-remote-code-execution-rce-authenticat… (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.