Vulnerability in N/a

CVE-2025-43931

flask-boilerplate through a170e7c allows account takeover via the password reset feature because SERVER_NAME is not configured and thus a reset depends on the Host HTTP header.

Published · last modified .

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.004 (27.5th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 28th percentile — 27.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2025-43931: held from 0.003 to 0.004.

EPSS over last 30 days · oldest: 0.003 · newest: 0.004 · change: +0.000

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2025-43931?
CVE-2025-43931 is a critical-severity vulnerability in N/a, classified under Weak Password Recovery Mechanism for Forgotten Password. CVSS score: 9.8/10. Published 2025-07-07.
How severe is CVE-2025-43931?
Critical severity. CVSS v3 base score is 9.8 out of 10.