CVE-2025-54320

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CVSS 3.1

4.3 medium

EPSS

<1%p26

Published

Nov 18, 2025 (Nov 18, 2025)

Modified

Jun 17, 2026

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.

Vendors: ascertia
Products: signinghub
Weakness: CWE-770
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L

NVD CVE.org GitHub PoCs EPSS (0.3%)

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