alienator88 Pearcleaner up to 4.5.1 XPC Service os command injection

Summaryinfo

A vulnerability was found in alienator88 Pearcleaner up to 4.5.1. It has been classified as critical. This impacts an unknown function of the component XPC Service. This manipulation causes os command injection. This vulnerability is tracked as CVE-2025-54595. The attack is restricted to local execution. No exploit exists. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability classified as critical was found in alienator88 Pearcleaner up to 4.5.1. Affected by this vulnerability is an unknown code block of the component XPC Service. The manipulation with an unknown input leads to a os command injection vulnerability. The CWE definition for the vulnerability is CWE-78. The product constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command when it is sent to a downstream component. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

Pearcleaner is a free, source-available and fair-code licensed mac app cleaner. The PearcleanerHelper is a privileged helper tool bundled with the Pearcleaner application. It is registered and activated only after the user approves a system prompt to allow privileged operations. Upon approval, the helper is configured as a LaunchDaemon and runs with root privileges. In versions 4.4.0 through 4.5.1, the helper registers an XPC service (com.alienator88.Pearcleaner.PearcleanerHelper) and accepts unauthenticated connections from any local process. It exposes a method that executes arbitrary shell commands. This allows any local unprivileged user to escalate privileges to root once the helper is approved and active. This issue is fixed in version 4.5.2.

It is possible to read the advisory at github.com. This vulnerability is known as CVE-2025-54595 since 07/25/2025. The exploitation appears to be easy. Attacking locally is a requirement. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1202 according to MITRE ATT&CK.

Upgrading to version 4.5.2 eliminates this vulnerability. The upgrade is hosted for download at github.com. Applying the patch 69afadfa95791cb998118ca35c227007b230b984 is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

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Productinfo

Vendor

• alienator88

Name

• Pearcleaner

Version

• 4.5.0
• 4.5.1

License

• open-source

Website

• Product: https://github.com/alienator88/Pearcleaner/

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