Improper input validation in WESEEK, Inc. GROWI
Priority LOW 35CWE-20Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- High
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA.
Summary
Invalid file validation on the upload feature in GROWI versions v4.2.2 allows a remote attacker with administrative privilege to overwrite the files on the server, which may lead to arbitrary code execution.
Why it matters now
EPSS 0.019 79th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| WESEEK, Inc. | GROWI | up to v4.2.2 | — | No fix listed | CNA |
- GROWI VendorWESEEK, Inc. Affected up to v4.2.2 Fixed in — No fix listed CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:weseek:growi:4.2.2:*:*:*:*:*:*:* | 4.2.2 | Vulnerable | WESEEK, Inc. |
- cpe:2.3:a:weseek:growi:4.2.2:*:*:*:*:*:*:* Versions 4.2.2 Vulnerable ·WESEEK, Inc.
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2021-20671
- 2026-10-03 Alias added: GHSA-84w3-v2m2-fj4m
References
More WESEEK, Inc. Growi vulnerabilities
- TI-2021-03962 Injection in WESEEK, Inc. GROWI CVSS 3.1CRITICAL 9.1
- TI-2019-04258 Cross-site request forgery in WESEEK, Inc. GROWI CVSS 3.0HIGH 8.8
- TI-2020-04644 Path traversal in WESEEK, Inc. GROWI CVSS 3.1HIGH 7.5
- TI-2020-04643 Improper input validation in WESEEK, Inc. GROWI CVSS 3.1HIGH 7.5
- TI-2021-03896 Improper access control vulnerability in GROWI versions v4.2.2 and earlier allows a… CVSS 3.1HIGH 7.5
- TI-2020-04637 Information disclosure in WESEEK, Inc. GROWI CVSS 3.1HIGH 7.5
Sources
- CVE-2021-20671 · CVE Program
- CVE-2021-20671 · NVD
- FIRST EPSS
- GHSA-84w3-v2m2-fj4m · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences