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CVE-2023-22471

Nextcloud Deck vulnerable to authorization bypass

MEDIUM
4.3
CVSS Score
Published: January 14, 2023 at 12:34 AM UTC
Updated: June 17, 2026 at 05:35 AM UTC
1 product affected across 1 vendorDeck

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Severity
MEDIUM4.3
Exploit prediction
EPSS 0.5%
SSVC
No known exploit

Description

Deck is a kanban style organization tool aimed at personal planning and project organization for teams integrated with Nextcloud. Broken access control allows a user to delete attachments of other users. There are currently no known workarounds. It is recommended that the Nextcloud Deck app is upgraded to 1.6.5 or 1.7.3 or 1.8.2.

Affected

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

Deck· Nextcloudnextcloud-app
95%
v < 1.6.51.7.0 ≤ v < 1.7.31.8.0 ≤ v < 1.8.2
Affected range stops below 1.6.5, so it looks safe — our inference, not a vendor statement
Affected range stops below 1.7.3, so it looks safe — our inference, not a vendor statement
Affected range stops below 1.8.2, 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 (2)

x_refsource_MISCPatchThird Party Advisory
Source: [email protected]
https://github.com/nextcloud/deck/pull/4173
x_refsource_CONFIRMThird Party Advisory
Source: [email protected]
https://github.com/nextcloud/security-advisories/security/advisories/GHSA-2vw5-pfg6-3wm6

SSVC — Action Prioritization

SSVCNo known exploitNot 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
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
LOW
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-639

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