CVE-2025-54320

Medium

Description

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.

SeverityMedium

CVSS4.3

Exploit probability—

ProductAscertia Signinghub

PublishedNov 18, 2025

First seenNov 18, 2025

Weakness typeCWE-770Allocation of resources without limits

How to fix

Vendor advisories

ascertia.com/company/vulnerability-disclosure-policy/

Affected products

Product	Affected versions	Fixed in
ascertia signinghub	v ≤ 8.6.8	—

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