CVE-2025-45091 Cross-site scripting in n/a
An authenticated attacker can inject malicious scripts via username modification, leading to stored XSS in notifications and activities.
- 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-2025-45091?
CVE-2025-45091 is a medium-severity cross-site scripting vulnerability in n/a, published on 15 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
Seafile versions 11.0.18-Pro, 12.0.10, and 12.0.10-Pro are vulnerable to a stored Cross-Site Scripting (XSS) attack. An authenticated attacker can exploit this vulnerability by modifying their username to include a malicious XSS payload in notification and activities.
Weakness: CWE-79
Which versions are affected by CVE-2025-45091?
How do I fix CVE-2025-45091?
No fix has been published for CVE-2025-45091 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-2025-45091 being exploited?
There is no known exploitation of CVE-2025-45091 in the wild and no public exploit code.
Sources
Also known as GHSA-55q7-6rw6-qr99, UBUNTU-CVE-2025-45091.