CVE-2025-40649 Múltiples vulnerabilidades en Negotiator de BBMRI-ERIC
Stored XSS in BBMRI-ERIC Negotiator allows attackers to steal session cookies from authenticated users via crafted POST requests.
- 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-2025-40649?
CVE-2025-40649 is a medium-severity cross-site scripting vulnerability in BBMRI-ERIC Negotiator, published on 7 Oct 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
Stored Cross-Site Scripting (XSS) in Biobanking and Biomolecular Resources Negotiator v3.15.2 - European Research Infrastructure (BBMRI-ERIC), consisting of a stored XSS due to a lack of proper validation of user input by sending a POST request using parameter text in '/api/v3/negotiations/<postUID>/posts'. This vulnerability could allow a remote user to send a specially crafted query to an authenticated user and steal their cookie session details.
Weakness: CWE-79
Which versions are affected by CVE-2025-40649?
How do I fix CVE-2025-40649?
No fix has been published for CVE-2025-40649 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-2025-40649 being exploited?
There is no known exploitation of CVE-2025-40649 in the wild and no public exploit code.
Sources
Also known as GHSA-3797-922x-c32p.