CVE-2025-54321

9.8 criticalEPSS 0.5%

Critical (9.8) in ascertia signinghub. EPSS 0.5% chance of exploitation in the next 30 days.

In Ascertia SigningHub through 8.6.8, there is a lack of rate limiting on the reset password function, leading to an email bombing vulnerability. An authenticated attacker can exploit this by automating reset password requests.

Severity

CVSS 3.1

9.8 critical

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS: 0.5% chance of exploitation in the next 30 days; higher than 42% of CVEs (scores of 2026-11-01)
CWE: CWE-799
Published: 2025-11-18
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

ascertia:signinghub

References

https://github.com/saykino/CVE-2025-54321
https://www.ascertia.com/company/vulnerability-disclosure-policy/

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