Skip to main content

Growi CVE-2020-5682

HIGH
Improper Input Validation (CWE-20)
2020-12-16 vultures@jpcert.or.jp
7.5
CVSS 3.1 · NVD
View

Vulnerability Assessment

Weakness
CWE
OWASP Top 10:2025
A05:2025 - Injection
ASVS 5.0
V2 - Validation and Business Logic Input validation, allowlisting
Impact

CVSS score of 7.5 (HIGH). Attack characteristics: network attack vector, low complexity, no privileges required, no user interaction not required.

Exploit ScenarioDerived

This vulnerability can be exploited remotely over the network. Successful exploitation could compromise the high-severity affected system.

This Week Schedule remediation this week. Why: HIGH severity (CVSS 7.0-8.9).
No patch listed yet 2.0% exploitation probability (EPSS)

Get an e-mail when this CVE is exploited, patched or re-scored. Free account.

Alert me

AnalysisAI

Improper input validation in GROWI versions prior to v4.2.3 (v4.2 Series), GROWI versions prior to v4.1.12 (v4.1 Series), and GROWI v3 series and earlier GROWI versions prior to v4.2.3 (v4.2 Series),. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.

Affects your stack

Find out whether the stacks and servers you run are on an affected version.

Checking this CVE against your own stacks and servers is part of the Basic plan and up.

Technical ContextAI · show details

This vulnerability is classified under CWE-20. Improper input validation in GROWI versions prior to v4.2.3 (v4.2 Series), GROWI versions prior to v4.1.12 (v4.1 Series), and GROWI v3 series and earlier GROWI versions prior to v4.2.3 (v4.2 Series), GROWI versions prior to v4.1.12 (v4.1 Series), and GROWI v3 series and earlier allows remote attackers to cause a denial of service via unspecified vectors. Affected products include: Weseek Growi.

Know when Growi gets its next vulnerability

  • Watch products and get an email when something new is published
  • Check this CVE against your own stack and servers
  • Exploit and PoC references, threat intelligence from 22 sources

No credit card · 7-day full trial

Severity by source

NVD PRIMARY 7.5 HIGH
AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

DescriptionNVD

Improper input validation in GROWI versions prior to v4.2.3 (v4.2 Series), GROWI versions prior to v4.1.12 (v4.1 Series), and GROWI v3 series and earlier GROWI versions prior to v4.2.3 (v4.2 Series), GROWI versions prior to v4.1.12 (v4.1 Series), and GROWI v3 series and earlier allows remote attackers to cause a denial of service via unspecified vectors.

Threat Intelligence Overview

EPSS Score
2.0%
Top 22% exploitable
Data Quality
3 sources
Confidence: Low

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue
Severity HIGH
CISA KEV No
Public POC No
EPSS 2.0%
Patch available No
Active threat No
Deciding rule
HIGH severity (CVSS 7.0-8.9)
What every action level means
Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.
Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.
This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.
This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.
Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived
Scheduled
Exploitation· derived
None
System Exposure· derived
Open
Automatable· derived
Yes
Human Impact· derived
Medium

Priority Score

40
Low Medium High Critical
KEV: 0
EPSS: +2
CVSS: +38
PoC: 0
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

Denial of Service attacks render applications or systems unavailable by overwhelming resources or triggering failure conditions.

Affected Products (CPE)NVD

cpe:2.3:a:weseek:growi:*:*:*:*:*:*:*:*
cpe:2.3:a:weseek:growi:*:*:*:*:*:*:*:*
cpe:2.3:a:weseek:growi:*:*:*:*:*:*:*:*

More in Growi

View all
CVE-2021-20736 CRITICAL
9.1 Jun 22

NoSQL injection vulnerability in GROWI versions prior to v4.2.20 allows a remote attacker to obtain and/or alter the inf

CVE-2019-5968 HIGH
8.8 Jul 05

Cross-site request forgery (CSRF) vulnerability in GROWI v3.4.6 and earlier allows remote attackers to hijack the authen

CVE-2026-80191 HIGH
8.7 Aug 25

Unauthenticated file disclosure in GROWI (all versions before 8.0.2) exposes private page attachments to any caller who

CVE-2026-41040 HIGH
8.7 Apr 23

Remote denial of service via regular expression attack in GROWI allows unauthenticated network attackers to exhaust serv

CVE-2026-25083 HIGH
8.7 Mar 16

Cross-user data exposure and tampering in GROWI v7.4.5 and earlier allows any authenticated user who learns a shared AI

CVE-2026-41951 HIGH
8.6 May 11

Remote path traversal in GROWI v7.5.0 and earlier allows authenticated administrators to execute arbitrary EJS templates

CVE-2021-20670 HIGH
7.5 Mar 10

Improper access control vulnerability in GROWI versions v4.2.2 and earlier allows a remote unauthenticated attacker to r

CVE-2020-5683 HIGH
7.5 Dec 16

Directory traversal vulnerability in GROWI versions prior to v4.2.3 (v4.2 Series), GROWI versions prior to v4.1.12 (v4.1

CVE-2020-5676 HIGH
7.5 Dec 03

GROWI v4.1.3 and earlier allow remote attackers to obtain information which is not allowed to access via unspecified vec

CVE-2019-13338 HIGH
7.5 Jul 09

In WESEEK GROWI before 3.5.0, a remote attacker can obtain the password hash of the creator of a page by leveraging wiki

CVE-2019-13337 HIGH
7.5 Jul 09

In WESEEK GROWI before 3.5.0, the site-wide basic authentication can be bypassed by adding a URL parameter access_token

CVE-2021-20671 HIGH
7.2 Mar 10

Invalid file validation on the upload feature in GROWI versions v4.2.2 allows a remote attacker with administrative priv

This site uses cookies essential for authentication and security. No tracking or analytics cookies are used. Privacy Policy