CVE-2025-46703 Potential XSS in Extension:AtMentions
Cross-site scripting in BlueSpice AtMentions extension allows attackers to inject malicious scripts, potentially leading to session hijacking or code execution.
- 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-2025-46703?
CVE-2025-46703 is a medium-severity cross-site scripting vulnerability in Hallo Welt! GmbH BlueSpice, published on 19 Sep 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
Improper Encoding or Escaping of Output vulnerability in Hallo Welt! GmbH BlueSpice (Extension:AtMentions) allows Cross-Site Scripting (XSS). This issue affects BlueSpice: from 5 through 5.1.1.
Which versions are affected by CVE-2025-46703?
It affects 1 product.
Products include Hallowelt Bluespice.
How do I fix CVE-2025-46703?
No fix has been published for CVE-2025-46703 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-2025-46703 being exploited?
There is no known exploitation of CVE-2025-46703 in the wild and no public exploit code.
Other vulnerabilities in Hallo Welt! GmbH BlueSpice
Sources
Also known as GHSA-32cw-qm55-8qj6.