What is CVE-2022-30515?

CVE-2022-30515 is a medium-severity vulnerability in Zkteco Biotime, classified under Missing Authentication for Critical Function. CVSS score: 5.3/10. Published 2022-11-08.

How severe is CVE-2022-30515?

Medium severity. CVSS v3 base score is 5.3 out of 10.

Auth bypass in Zkteco Biotime

CVE-2022-30515

ZKTeco BioTime 8.5.4 is missing authentication on folders containing employee photos, allowing an attacker to view them through filename enumeration.

Vulnerability class: Broken Authentication

Published 2022-11-08 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N.

EPSS exploit prediction

EPSS: 0.007 (53.3th percentile), scored 2026-10-20.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 53rd percentile — 53.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.007 · newest: 0.007 · change: +0.000

Affected products

Zkteco Biotime — versions 8.5.4, 8.5.5

Weakness classification (CWE)

CWE-306 — Missing Authentication for Critical Function

References

www.zkteco.me/software-5 (Product, Vendor Advisory)
codingkoala.eu/posts/CVE202230515/ (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2022-30515?: CVE-2022-30515 is a medium-severity vulnerability in Zkteco Biotime, classified under Missing Authentication for Critical Function. CVSS score: 5.3/10. Published 2022-11-08.
How severe is CVE-2022-30515?: Medium severity. CVSS v3 base score is 5.3 out of 10.