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CVE-2025-3895

CWE-334 Small Space of Random Values

CVSS v4.0: 9.1 (CRITICAL) Published: May 23, 2025 View on NVD →

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.

Affected Products

Vendor	Product	Versions Affected
Jan Syski	MegaBIP	0 (<= 5.19) (affected)

CVSS Score & Vector

Base Score: 9.1 (CRITICAL)

Vector (v4.0):
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N

Credits / Discoverer

Kamil Szczurowski
Robert Kruczek

References & Advisories

🔗 https://cert.pl/en/posts/2025/05/CVE-2025-3893
🔗 https://megabip.pl/index.php?id=24,145
🔗 https://www.gov.pl/web/cyfryzacja/rekomendacja-pelnomocnika-rzadu-ds-cyberbezpieczenstwa-dotyczaca-biuletynow-informacji-publicznej