PT-2025-47088 · Ascertia · Ascertia Signinghub

Published 2025-11-16 · Updated 2025-11-19 · CVE-2025-54320

Positive Technologies (AI Summary)

CVSS v3.1

4.3

Medium

Base vector

AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L

Name of the Vulnerable Software and Affected Versions Ascertia SigningHub versions through 8.6.8

Description A lack of rate limiting on the invite user function allows for an email bombing attack. An authenticated attacker can automate invite requests to a target email address.

Recommendations Apply rate limiting to the invite user function.

Exploit

Fix

Allocation of Resources Without Limits

Weakness Enumeration

CWE-770

Related Identifiers

CVE-2025-54320

Affected Products

Ascertia Signinghub

References · 9

• 🔥 https://github.com/saykino/CVE-2025-54320 · Exploit
• https://osv.dev/vulnerability/CVE-2025-54320 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2025-54320 · Security Note
• https://ascertia.com/company/vulnerability-disclosure-policy · Vendor Advisory
• https://twitter.com/VulmonFeeds/status/1989975666637344971 · Twitter Post
• https://t.me/CVEtracker/37658 · Telegram Post
• https://t.me/cveNotify/143251 · Telegram Post
• https://t.me/cveNotify/143346 · Telegram Post
• https://twitter.com/CVEnew/status/1991042993873109041 · Twitter Post