CVE-2020-8293

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Published Jan 26, 2021 CVSS 3.1 · 6.5 Medium EPSS 1.6% KEV · Not listed

Description

A missing input validation in Nextcloud Server before 20.0.2, 19.0.5, 18.0.11 allows users to store unlimited data in workflow rules causing load and potential DDoS on later interactions and usage with those rules.

Affected Products

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

n/a

Nextcloud Server

affected

Version	Status	Constraints
`Fixed in 20.0.2, 19.0.5, 18.0.11`	affected	—

Configuration 1 [-]

OR	cpe:2.3:a:nextcloud:nextcloud_server::::::::
	cpe:2.3:a:nextcloud:nextcloud_server::::::::
	cpe:2.3:a:nextcloud:nextcloud_server::::::::

No data.

No data available yet.

Remediation

No solution or workaround provided in the CVE record

Tracking

Sign in to view the affected projects.

Advisories

Source	ID	Title
EUVD	EUVD-2020-29161	A missing input validation in Nextcloud Server before 20.0.2, 19.0.5, 18.0.11 allows users to store unlimited data in workflow rules causing load and potential DDoS on later interactions and usage with those rules.

Metrics

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact None

Integrity Impact None

Availability Impact High

User Interaction None

No CVSS v3.0

Access Vector Network

Access Complexity Low

Authentication Single

Confidentiality Impact None

Integrity Impact None

Availability Impact Partial

This CVE is not in the KEV list.

Exploit prediction score: 1.6% (1.576% probability within 30 days)

Key SSVC decision points have not yet been added.

References

Link	Providers
https://hackerone.com/reports/1018146
https://nextcloud.com/security/advisory/?id=NC-SA-2021-001

History

No history.

Subscriptions

Nextcloud Nextcloud Server

Weaknesses

CWE-400

Sources

CVE record Updated: Aug 4, 2024, 9:56 AM

Status: PUBLISHED
Assigner: hackerone
Published: Jan 26, 2021, 4:33 PM
Updated: Aug 4, 2024, 9:56 AM
Reserved: Jan 28, 2020, 12:00 AM

View source JSON

Vulnrichment No data

No data.

NVD Updated: Jun 17, 2026, 3:26 AM

Status: Modified
Published: Jan 26, 2021, 6:16 PM
Modified: Jun 17, 2026, 3:26 AM

View source JSON

Red Hat No data

No data.

OpenCVE enrichment No data

No data.

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