CVE-2023-35173

End-to-End encrypted file-drops can be made inaccessible

MEDIUM
6.5
CVSS Score
Published: June 23, 2023 at 08:50 PM UTC
Updated: June 17, 2026 at 06:04 AM UTC
1 product affected across 1 vendorEnd To End Encryption

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Severity
MEDIUM6.5
Exploit prediction
EPSS 0.5%

Description

Nextcloud End-to-end encryption app provides all the necessary APIs to implement End-to-End encryption on the client side. By providing an invalid meta data file, an attacker can make previously dropped files inaccessible. It is recommended that the Nextcloud End-to-end encryption app is upgraded to version 1.12.4 that contains the fix.

Affected

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

1.12.0 ≤ v < 1.12.4
Affected range stops below 1.12.4, 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:

CVSS

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

Quick Info

StatusMODIFIED
CWE
CWE-284NVD-CWE-Other

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