CVE-2025-54320

In Ascertia SigningHub through 8.6.8, there is a lack of rate limiting on the invite user function, leading to an email bombing vulnerability. An authenticated attacker can exploit this by automating invite requests.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
4.3 MEDIUM
NETWORK
LOW
LOW
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
mitreCNA
---
---
CISA-ADPADP
4.3 MEDIUM
NETWORK
LOW
LOW
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
Base Score
CVSS 3.x
EPSS Score
Percentile: 16%
VendorProductVersion
ascertiasigninghub
𝑥
≤ 8.6.8
𝑥
= Vulnerable software versions
Common Weakness Enumeration
References
https://github.com/saykino/CVE-2025-54320
https://www.ascertia.com/company/vulnerability-disclosure-policy/