CVE-2025-3895

Low token entropy in MegaBIP

Description

Token used for resetting passwords in MegaBIP software are generated using a small space of random values combined with a queryable value. It allows an unauthenticated attacker who know user login names to brute force these tokens and change account passwords (including these belonging to administrators).  Version 5.20 of MegaBIP fixes this issue.

Category

9.1
CVSS
Severity: Critical
CVSS 4.0 •
EPSS 0.05%
Vendor Advisory megabip.pl
Affected: Jan Syski MegaBIP
Published at:
Updated at:

References

Link Tags
https://cert.pl/en/posts/2025/05/CVE-2025-3893 third party advisory
https://megabip.pl/index.php?id=24,145 vendor advisory
https://www.gov.pl/web/cyfryzacja/rekomendacja-pelnomocnika-rzadu-ds-cyberbezpieczenstwa-dotyczaca-biuletynow-informacji-publicznej government resource

Frequently Asked Questions

What is the severity of CVE-2025-3895?
CVE-2025-3895 has been scored as a critical severity vulnerability.
How to fix CVE-2025-3895?
To fix CVE-2025-3895, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2025-3895 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2025-3895 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2025-3895?
CVE-2025-3895 affects Jan Syski MegaBIP.
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