What is CVE-2021-3852?

CVE-2021-3852 is a high-severity vulnerability in Weseek Growi, classified under Authorization Bypass Through User-Controlled Key. CVSS score: 7.5/10. Published 2022-01-12.

How severe is CVE-2021-3852?

High severity. CVSS v3 base score is 7.5 out of 10.

Auth bypass in Weseek Growi

CVE-2021-3852

growi is vulnerable to Authorization Bypass Through User-Controlled Key

Vulnerability class: IDOR (Insecure Direct Object Reference)

Published 2022-01-12 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N.

EPSS exploit prediction

EPSS: 0.008 (55.2th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 55th percentile — 55.2% 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: 0.008 · change: 0.000

Affected products

Weseek Growi
Weseek Weseek/growi — versions unspecified

Weakness classification (CWE)

CWE-639 — Authorization Bypass Through User-Controlled Key

References

huntr.dev/bounties/d44def81-2834-4031-9037-e923975c3852 (Exploit, Third Party Advisory)
github.com/weseek/growi/commit/863bfd7f622f413bd159b9446166fb1ce78ec863 (Patch, Third Party Advisory)

Frequently asked questions

What is CVE-2021-3852?: CVE-2021-3852 is a high-severity vulnerability in Weseek Growi, classified under Authorization Bypass Through User-Controlled Key. CVSS score: 7.5/10. Published 2022-01-12.
How severe is CVE-2021-3852?: High severity. CVSS v3 base score is 7.5 out of 10.