CVE-2025-53018 Lychee has Server-Side Request Forgery (SSRF) in Photo::fromUrl API via unvalidated remote image URLs
Attackers can exploit unvalidated URL inputs in the Photo::fromUrl API to access internal network resources and cloud metadata.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2025-53018?
CVE-2025-53018 is a low-severity server-side request forgery vulnerability in LycheeOrg Lychee, published on 27 Jun 2025. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.
Official description
Lychee is a free, open-source photo-management tool. Prior to version 6.6.13, a critical Server-Side Request Forgery (SSRF) vulnerability exists in the `/api/v2/Photo::fromUrl` endpoint. This flaw lets an attacker instruct the application’s backend to make HTTP requests to any URL they choose. Consequently, internal network resources—such as localhost services or cloud-provider metadata endpoints—become reachable. The endpoint takes a URL from the user and calls it server-side via fopen() without any safeguards. There is no IP address validation, nor are there any allow-list, timeout, or size restrictions. Because of this, attackers can point the application at internal targets. Using this flaw, an attacker can perform internal port scans or retrieve sensitive cloud metadata. Version 6.6.13 contains a patch for the issue.
Weakness: CWE-918
Which versions are affected by CVE-2025-53018?
How do I fix CVE-2025-53018?
No fix has been published for CVE-2025-53018 yet. Limit exposure of the affected software until one is available.
Upgrade, and send outbound requests through an allow-list that blocks internal addresses. More about Server-side request forgery.
Is CVE-2025-53018 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-53018 exists.
Sources
Also known as GHSA-cpgw-wgf3-xc6v.