CVE-2022-24888

Possible Injection in Nextcloud Server

MEDIUM

4.3

CVSS Score

Published: April 27, 2022 at 02:25 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 1%

SSVC

No known exploit

Description

Nextcloud Server is the file server software for Nextcloud, a self-hosted productivity platform. Prior to versions 20.0.14.4, 21.0.8, 22.2.4, and 23.0.1, it is possible to create files and folders that have leading and trailing \n, \r, \t, and \v characters. The server rejects files and folders that have these characters in the middle of their names, so this might be an opportunity for injection. This issue is fixed in versions 20.0.14.4, 21.0.8, 22.2.4, and 23.0.1. There are currently no known workarounds.

Affected

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

Nextcloud/server · Nextcloudnextcloud-app

95%

v < 20.0.14.421.0.0 ≤ v < 21.0.822.0.0 ≤ v < 22.2.423.0.0 ≤ v < 23.0.1

Affected range stops below 20.0.14.4, so it looks safe — our inference, not a vendor statement

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

References (4)

x_refsource_CONFIRMThird Party Advisory

Source: [email protected]

https://github.com/nextcloud/security-advisories/security/advisories/GHSA-w3h6-p64h-q9jp

x_refsource_MISCPatchThird Party Advisory

Source: [email protected]

https://github.com/nextcloud/server/pull/29895

x_refsource_MISCPermissions RequiredThird Party Advisory

Source: [email protected]

https://hackerone.com/reports/1402249

Vendor Advisoryx_refsource_GENTOOThird Party Advisory

Source: [email protected]

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

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

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

CVSS

4.3MEDIUMGitHub_M

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

Vector?

Quick Info

StatusMODIFIED

CWE

CWE-74NVD-CWE-Other

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