PatchSiren

PatchSiren cyber security CVE debrief

CVE-2023-2887 CBOT CVE debrief

CVE-2023-2887 is a Critical authentication bypass vulnerability in CBOT Chatbot. According to the CVE record, affected deployments include Chatbot Core versions before 4.0.3.4 and Panel versions before 4.0.3.7. The published CVSS v3.1 vector is 9.8 (AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H), indicating a network-reachable issue with no privileges or user interaction required and high impact if exploited.

Vendor
CBOT
Product
Chatbot
CVSS
CRITICAL 9.8
CISA KEV
Not listed in stored evidence
Original CVE published
2023-05-25
Original CVE updated
2024-11-21
Advisory published
2023-05-25
Advisory updated
2024-11-21

Who should care

Administrators and security teams responsible for CBOT Chatbot Core and Panel deployments, especially any internet-facing instances or systems that rely on Chatbot authentication for administrative access or sensitive workflows.

Technical summary

The available sources describe the issue as an authentication bypass by spoofing. NVD lists vulnerable CPE criteria for cbot_core before 4.0.3.4 and cbot_panel before 4.0.3.7, and the advisory-linked weakness classification includes CWE-290. In practical defensive terms, this means an attacker may be able to impersonate an authenticated party or otherwise evade authentication controls without prior access credentials, which can expose confidentiality, integrity, and availability to severe risk.

Defensive priority

Urgent. The combination of unauthenticated network attack surface and high confidentiality/integrity/availability impact makes this a priority fix for exposed CBOT Chatbot installations.

Recommended defensive actions

  • Upgrade CBOT Chatbot Core to version 4.0.3.4 or later.
  • Upgrade CBOT Chatbot Panel to version 4.0.3.7 or later.
  • Identify all CBOT Chatbot Core and Panel instances, including test, staging, and customer-facing deployments.
  • Restrict network exposure of administrative interfaces until remediation is complete.
  • Review authentication-related logs and access records for unexpected successful logins or suspicious administrative activity.
  • Revalidate any automation, integrations, or reverse proxies that interact with Chatbot authentication after patching.

Evidence notes

This debrief is based on the official CVE record, the NVD detail page, and the linked USOM advisory. The CVE description states the vulnerability is an authentication bypass by spoofing affecting CBOT Chatbot before Core 4.0.3.4 and Panel 4.0.3.7. NVD lists the affected CPE ranges and the CVSS vector 9.8. The USOM-linked advisory is referenced by NVD and contributes CWE-290 classification. No exploit details are included.

Sources and references

Verified primary and authoritative sources

  • CVE-2023-2887 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2023-2887

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2023-2887 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2023-2887

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

Supplemental references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.