Medium severity · published Apr 6, 2026
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
6.1
CVSS
0.2%
EPSS
No
On KEV
Description
An open redirect in Ascertia SigningHub User v10.0 allows attackers to redirect users to a malicious site via a crafted URL.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
Low
Integrity
Low
Availability
None
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 7% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
SI
Signinghub · Ascertia
8.6.8; 10.0 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-61166
CVE.org
https://www.cve.org/CVERecord?id=CVE-2025-61166
Not Applicable
https://linkedin.com/in/thakur-nikhil
Exploit
https://medium.com/@rajput.thakur/malicious-open-redirection-cve-2025-61166-bf5d708cd241
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