CVE-2025-3894 Stored XSS in MegaBIP
Stored XSS in MegaBIP text editor allows attackers with high privileges to execute scripts against other users.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2025-3894?
CVE-2025-3894 is a medium-severity cross-site scripting vulnerability in Jan Syski MegaBIP, published on 23 May 2025. An attacker needs administrator access to exploit it, and only if a user opens a file or follows a link.
Official description
Text editor embedded into MegaBIP software does not neutralize user input allowing Stored XSS attacks on other users. In order to use the editor high privileges are required. Version 5.20 of MegaBIP fixes this issue.
Weakness: CWE-79
Which versions are affected by CVE-2025-3894?
How do I fix CVE-2025-3894?
No fix has been published for CVE-2025-3894 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-2025-3894 being exploited?
There is no known exploitation of CVE-2025-3894 in the wild and no public exploit code.
Sources
Also known as GHSA-xqr2-347w-52hc.