CVE-2022-24889

Insufficient Verification of Data Authenticity in Nextcloud Server

MEDIUM

4.3

CVSS Score

Published: April 27, 2022 at 02:35 PM UTC

Updated: June 17, 2026 at 04:32 AM UTC

1 product affected across 1 vendorNextcloud/server

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Severity

MEDIUM4.3

Exploit prediction

EPSS 0.7%

SSVC

PoC

Description

Nextcloud Server is the file server software for Nextcloud, a self-hosted productivity platform. Prior to versions 21.0.8, 22.2.4, and 23.0.1, it is possible to trick administrators into enabling "recommended" apps for the Nextcloud server that they do not need, thus expanding their attack surface unnecessarily. This issue is fixed in versions 21.0.8 , 22.2.4, and 23.0.1.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Nextcloud/server · Nextcloudnextcloud-app

95%

v < 21.0.822.0.0 ≤ v < 22.2.423.0.0 ≤ v < 23.0.1

Affected range stops below 21.0.8, so it looks safe — our inference, not a vendor statement

Affected range stops below 22.2.4, so it looks safe — our inference, not a vendor statement

Affected range stops below 23.0.1, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

https://security.gentoo.org/glsa/202208-17

References (4)

x_refsource_CONFIRMThird Party Advisory

Source: [email protected]

https://github.com/nextcloud/security-advisories/security/advisories/GHSA-5vw6-6prg-gvw6

x_refsource_MISCThird Party Advisory

Source: [email protected]

https://github.com/nextcloud/server/pull/30615

x_refsource_MISCExploitThird Party Advisory

Source: [email protected]

https://hackerone.com/reports/1403614

Vendor Advisoryx_refsource_GENTOOThird Party Advisory

Source: [email protected]

https://security.gentoo.org/glsa/202208-17

SSVC — Action Prioritization

SSVCPoCNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

4.3MEDIUM[email protected]

Attack Vector: NETWORK
Complexity: LOW
Privileges: NONE
User Interaction: REQUIRED
Scope: UNCHANGED
Confidentiality: NONE
Integrity: LOW
Availability: NONE

Vector?

Quick Info

StatusMODIFIED

CWE

CWE-345

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