CVE-2025-59334 Linkr allows manifest tampering leading to arbitrary file injection
Attackers can tamper with manifest files to inject malicious entries, leading to arbitrary file downloads and potential remote code execution when extracted.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2025-59334?
CVE-2025-59334 is a critical code injection vulnerability in mohammadzain2008 Linkr, published on 16 Sep 2025. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
Linkr is a lightweight file delivery system that downloads files from a webserver. Linkr versions through 2.0.0 do not verify the integrity or authenticity of .linkr manifest files before using their contents, allowing a tampered manifest to inject arbitrary file entries into a package distribution. An attacker can modify a generated .linkr manifest (for example by adding a new entry with a malicious URL) and when a user runs the extract command the client downloads the attacker-supplied file without verification. This enables arbitrary file injection and creates a potential path to remote code execution if a downloaded malicious binary or script is later executed. Version 2.0.1 adds a manifest integrity check that compares the checksum of the original author-created manifest to the one being extracted and aborts on mismatch, warning if no original manifest is hosted. Users should update to 2.0.1 or later. As a workaround prior to updating, use only trusted .linkr manifests, manually verify manifest integrity, and host manifests on trusted servers.
Weakness: CWE-347
Which versions are affected by CVE-2025-59334?
It affects 1 product.
Products include Mohammadzain2008 Linkr.
How do I fix CVE-2025-59334?
No fix has been published for CVE-2025-59334 yet. Limit exposure of the affected software until one is available.
Upgrade, and never evaluate templates, expressions or code built from user input. More about Code injection.
Is CVE-2025-59334 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-59334 exists.
Sources
Also known as GHSA-6wph-mpv2-29xv.