What is CVE-2023-2887?

CVE-2023-2887 is a critical-severity vulnerability in Cbot Core, classified under Authentication Bypass by Spoofing. CVSS score: 9.8/10. Published 2023-05-25.

How severe is CVE-2023-2887?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Vulnerability in Cbot Core

CVE-2023-2887

Authentication Bypass by Spoofing vulnerability in CBOT Chatbot allows Authentication Bypass. This issue affects Chatbot: before Core: v4.0.3.4 Panel: v4.0.3.7.

Published 2023-05-25 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.008 (54.7th percentile), scored 2026-10-20.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 55th percentile — 54.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.008 · newest: 0.008 · change: 0.000

Affected products

Weakness classification (CWE)

CWE-290 — Authentication Bypass by Spoofing

References

www.usom.gov.tr/bildirim/tr-23-0293 (Third Party Advisory, government-resource, broken-link)
siberguvenlik.gov.tr/guvenlik-bildirimleri/detay/tr-23-0293 (government-resource)

Frequently asked questions

What is CVE-2023-2887?: CVE-2023-2887 is a critical-severity vulnerability in Cbot Core, classified under Authentication Bypass by Spoofing. CVSS score: 9.8/10. Published 2023-05-25.
How severe is CVE-2023-2887?: Critical severity. CVSS v3 base score is 9.8 out of 10.