What is CVE-2021-20668?

CVE-2021-20668 is a low-severity vulnerability in Weseek Growi, classified under Path Traversal. CVSS score: 2.7/10. Published 2021-03-10.

How severe is CVE-2021-20668?

Low severity. CVSS v3 base score is 2.7 out of 10.

Path Traversal in Weseek Growi

CVE-2021-20668

Path traversal vulnerability in GROWI versions v4.2.2 and earlier allows an attacker with administrator rights to read an arbitrary path via a specially crafted URL.

Vulnerability class: Path Traversal (Directory Traversal)

Published 2021-03-10 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 2.7 (Low). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:N/A:N.

EPSS exploit prediction

EPSS: 0.009 (56.5th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 57th percentile — 56.5% 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: 0.009 · change: +0.000

Affected products

Weseek Growi
Weseek, Inc. Growi — versions versions v4.2.2 and earlier

Weakness classification (CWE)

CWE-22 — Path Traversal

References

weseek.co.jp/security/2021/03/08/vulnerability/growi-prevent-multiple-xss/ (Vendor Advisory)
jvn.jp/en/vu/JVNVU94889258/index.html (Third Party Advisory)

Frequently asked questions

What is CVE-2021-20668?: CVE-2021-20668 is a low-severity vulnerability in Weseek Growi, classified under Path Traversal. CVSS score: 2.7/10. Published 2021-03-10.
How severe is CVE-2021-20668?: Low severity. CVSS v3 base score is 2.7 out of 10.