CVE-2023-39520 Cryptomator vulnerable to Local Elevation of Privileges
Local attackers can escalate privileges to SYSTEM via the MSI repair function in Cryptomator, which loads user PowerShell profiles.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2023-39520?
CVE-2023-39520 is a medium-severity vulnerability in cryptomator, published on 7 Aug 2023. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
Cryptomator encrypts data being stored on cloud infrastructure. The MSI installer provided on the homepage for Cryptomator version 1.9.2 allows local privilege escalation for low privileged users, via the `repair` function. The problem occurs as the repair function of the MSI is spawning an SYSTEM Powershell without the `-NoProfile` parameter. Therefore the profile of the user starting the repair will be loaded. Version 1.9.3 contains a fix for this issue. Adding a `-NoProfile` to the powershell is a possible workaround.
Weakness: CWE-269
Which versions are affected by CVE-2023-39520?
It affects 1 product.
Products include Cryptomator Cryptomator.
How do I fix CVE-2023-39520?
No fix has been published for CVE-2023-39520 yet. Limit exposure of the affected software until one is available.
Is CVE-2023-39520 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-39520 exists.
Other vulnerabilities in cryptomator
- CVE-2026-32309 Cryptomator: Hub unlocking accepts plaintext HTTP and unvalidated endpoint schemes
- CVE-2022-25366 Code injection in n/a
- CVE-2026-32303 Cryptomator: Tampered vault configuration allows MITM attack on Hub API
- CVE-2026-32317 Cryptomator for Android: Tampered vault configuration allows MITM attack on Hub API
- CVE-2026-32318 Cryptomator for IOS: Tampered vault configuration allows MITM attack on Hub API
Sources
Also known as GHSA-62gx-54j7-mjh3.