How severe is CVE-2023-2887?

CVE-2023-2887 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2023-2887 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (51st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-2887?

CVE-2023-2887 primarily affects Cbot Cbot Core. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2023-2887?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

When was CVE-2023-2887 published?

CVE-2023-2887 was published on 2023-05-25 and last updated on 2026-06-17.

CVE-2023-2887

CVE-2023-2887 is a critical-severity vulnerability in Cbot Cbot Core with a CVSS 3.x base score of 9.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-290.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
EPSS exploit prediction: 1% (51st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-290
Affected product: Cbot Cbot Core
Published: 2023-05-25
Last modified: 2026-06-17

Description

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.

Frequently asked questions

What is 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.
How severe is CVE-2023-2887?: CVE-2023-2887 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2023-2887 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (51st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-2887?: CVE-2023-2887 primarily affects Cbot Cbot Core. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2023-2887?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2023-2887 published?: CVE-2023-2887 was published on 2023-05-25 and last updated on 2026-06-17.

References

Affected products (2)

cpe:2.3:a:cbot:cbot_core:*:*:*:*:*:*:*:*
cpe:2.3:a:cbot:cbot_panel:*:*:*:*:*:*:*:*

More vulnerabilities in Cbot Cbot Core

CVE-2023-2884 — Critical (CVSS 9.8): Use of Cryptographically Weak Pseudo-Random Number Generator (PRNG), Use of Insufficiently Random Values vulnerability…
CVE-2023-2882 — Critical (CVSS 9.8): Generation of Incorrect Security Tokens vulnerability in CBOT Chatbot allows Token Impersonation, Privilege…
CVE-2023-2883 — High (CVSS 8.8): Authorization Bypass Through User-Controlled Key vulnerability in CBOT Chatbot allows Authentication Abuse,…
CVE-2023-2885 — High (CVSS 8.1): Improper Enforcement of Message Integrity During Transmission in a Communication Channel vulnerability in CBOT Chatbot…
CVE-2023-2886 — Medium (CVSS 4.3): Missing Origin Validation in WebSockets vulnerability in CBOT Chatbot allows Content Spoofing Via Application API…

All CVEs affecting Cbot Cbot Core →

Other CWE-290 vulnerabilities

CVE-2026-48567 — Critical (CVSS 10.0): Authentication bypass by spoofing in Azure HorizonDB allows an unauthorized attacker to elevate privileges over a…
CVE-2026-6213 — Critical (CVSS 10.0): A vulnerability in Remote Spark SparkView before build 1122 allows an attacker to bypasses the local connection check…
CVE-2026-39858 — Critical (CVSS 10.0): Traefik is an HTTP reverse proxy and load balancer. Prior to versions 2.11.43, 3.6.14, and 3.7.0-rc.2, there is a high…
CVE-2025-66570 — Critical (CVSS 10.0): cpp-httplib is a C++11 single-file header-only cross platform HTTP/HTTPS library. Prior to 0.27.0, a vulnerability…
CVE-2025-34063 — Critical (CVSS 10.0): A cryptographic authentication bypass vulnerability exists in OneLogin AD Connector prior to 6.1.5 due to the exposure…
CVE-2023-22814 — Critical (CVSS 10.0): An authentication bypass issue via spoofing was discovered in the token-based authentication mechanism that could allow…

Browse all CWE-290 vulnerabilities →