What is CVE-2021-40954?

CVE-2021-40954 is a critical-severity vulnerability in Laiketui, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 9.8/10. Published 2022-06-23.

How severe is CVE-2021-40954?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Arbitrary file upload in Laiketui

CVE-2021-40954

Laiketui 3.5.0 is affected by an arbitrary file upload vulnerability that can allow an attacker to execute arbitrary code.

Vulnerability class: Unrestricted File Upload

Published 2022-06-23 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.018 (77.4th percentile), scored 2026-10-08.

Low probability of exploitation in the next 30 days, but still tracked. 77th percentile — 77.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.017 · newest: 0.018 · change: +0.001

Affected products

Laiketui — versions 3.5.0

Weakness classification (CWE)

CWE-434 — Unrestricted Upload of File with Dangerous Type

References

github.com/bettershop/LaikeTui/issues/11 (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2021-40954?: CVE-2021-40954 is a critical-severity vulnerability in Laiketui, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 9.8/10. Published 2022-06-23.
How severe is CVE-2021-40954?: Critical severity. CVSS v3 base score is 9.8 out of 10.