CVE-2023-28646

What it is

Nextcloud android is an android app for interfacing with the nextcloud home server ecosystem. In versions from 3.7.0 and before 3.24.1 an attacker that has access to the unlocked physical device can bypass the Nextcloud Android Pin/passcode protection via a thirdparty app. This allows to see meta information like sharer, sharees and activity of files. It is recommended that the Nextcloud Android app is upgraded to 3.24.1. There are no known workarounds for this vulnerability.

At a glance

Exploitability

Can be exploited with physical access with a low-privilege account, but needs a user to act. Limited direct impact.

Exploit odds

0.2% chance of exploitation in the next 30 days (EPSS).

Fix

A patch, advisory or fixed version is referenced. Upgrade or apply it.

Timeline

1. 2023-03-30 19:15 UTC PublishedDisclosed publicly on CVE.org and NVD
2. 2026-06-17 05:48 UTC Last updatedMost recent change to the record

Why it ranks here

• Exploited in the wild: no, CISA does not list it.
• Exploit odds: 0.2% in the next 30 days (EPSS).
• Severity: 4.4 MEDIUM (CVSS).
• Fix: a patch or advisory is linked.

Details

Published

2023-03-30 19:15 UTC

Last modified

2026-06-17 05:48 UTC

Exploit probability

0.2% · EPSS, next 30 days

Weakness

CWE-281

Record status

Modified

Affected

• Nextcloud < 3.24.1

Attack profile CVSS 3.1 · 4.4

Attack vector

Physical

Complexity

High

Privileges needed

Low

User interaction

Required

Scope

Changed

Confidentiality

Low

Integrity

Low

Availability

Low

Is it in your code?

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