What is CVE-2025-61166?

CVE-2025-61166 is a medium-severity vulnerability in Ascertia Signinghub, classified under URL Redirection to Untrusted Site (Open Redirect). CVSS score: 6.1/10. Published 2026-04-06.

How severe is CVE-2025-61166?

Medium severity. CVSS v3 base score is 6.1 out of 10.

Open Redirect in Ascertia Signinghub

CVE-2025-61166

An open redirect in Ascertia SigningHub User v10.0 allows attackers to redirect users to a malicious site via a crafted URL.

Vulnerability class: Open Redirect

EPSS: 0.002 (7.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.

Affected products

Ascertia Signinghub — versions 8.6.8, 10.0
N/a — versions n/a

Weakness classification (CWE)

CWE-601 — URL Redirection to Untrusted Site (Open Redirect)

References

cve@mitre.org (Not Applicable)
cve@mitre.org (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2025-61166?: CVE-2025-61166 is a medium-severity vulnerability in Ascertia Signinghub, classified under URL Redirection to Untrusted Site (Open Redirect). CVSS score: 6.1/10. Published 2026-04-06.
How severe is CVE-2025-61166?: Medium severity. CVSS v3 base score is 6.1 out of 10.