CVE-2025-53903 The Scratch Channel Has Potential Cross-Site Scripting (XSS) Vulnerability
Attackers can inject malicious scripts via unsanitized user inputs in the Scratch Channel news website, potentially compromising user sessions.
- 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-2025-53903?
CVE-2025-53903 is a low-severity cross-site scripting vulnerability in the-scratch-channel.github.io, published on 15 Jul 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
The Scratch Channel is a news website that is under development as of time of this writing. The file `/api/users.js` doesn't properly sanitize text box inputs, leading to a potential vulnerability to cross-site scripting attacks. Commit 90b39eb56b27b2bac29001abb1a3cac0964b8ddb addresses this issue.
Weakness: CWE-79
Which versions are affected by CVE-2025-53903?
How do I fix CVE-2025-53903?
No fix has been published for CVE-2025-53903 yet. Limit exposure of the affected software until one is available.
Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.
Is CVE-2025-53903 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-53903 exists.
Sources
Also known as GHSA-25wp-g9g6-7fr9.