CVE-2021-22896

View on CVE.org

Published Jun 11, 2021 CVSS 3.1 · 4.3 Medium EPSS < 1% KEV · Not listed

Description

Nextcloud Mail before 1.9.5 suffers from improper access control due to a missing permission check allowing other authenticated users to create mail aliases for other users.

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 Mail

affected

Version	Status	Constraints
`Fixed in 1.9.5`	affected	—

Configuration 1 [-]

cpe:2.3:a:nextcloud:nextcloud:*:*:*:*:*:*:*:*

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-2021-10028	Nextcloud Mail before 1.9.5 suffers from improper access control due to a missing permission check allowing other authenticated users to create mail aliases for other users.

Metrics

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact None

Integrity Impact Low

Availability Impact None

User Interaction None

No CVSS v3.0

Access Vector Network

Access Complexity Low

Authentication Single

Confidentiality Impact None

Integrity Impact Partial

Availability Impact None

This CVE is not in the KEV list.

Exploit prediction score: < 1% (0.988% probability within 30 days)

Key SSVC decision points have not yet been added.

References

Link	Providers
https://github.com/nextcloud/mail/pull/4864
https://github.com/nextcloud/mail/releases/tag/v1.9.5
https://github.com/nextcloud/security-advisories/security/advisories/GHSA-jmgp-77jq-fjp3
https://hackerone.com/reports/1129996

History

No history.

Subscriptions

Nextcloud Nextcloud

Weaknesses

CWE-862

Sources

CVE record Updated: Aug 3, 2024, 6:58 PM

Status: PUBLISHED
Assigner: hackerone
Published: Jun 11, 2021, 3:49 PM
Updated: Aug 3, 2024, 6:58 PM
Reserved: Jan 6, 2021, 12:00 AM

View source JSON

Vulnrichment No data

No data.

NVD Updated: Jun 17, 2026, 3:37 AM

Status: Modified
Published: Jun 11, 2021, 4:15 PM
Modified: Jun 17, 2026, 3:37 AM

View source JSON

Red Hat No data

No data.

OpenCVE enrichment No data

No data.

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