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Fencer Vulns
medium 4.3

CVE-2023-2886 json

Cross-Site WebSocket Hijacking in CBOT's Chatbot

published 2023-05-25 3 y ago modified 2026-06-17 4 mo ago also EUVD-2023-34332

cvss
4.3
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.2%
EPSS 0.2% chance of exploitation in 30 days, percentile 10%
public exploits
0
none known

Summary

Missing Origin Validation in WebSockets vulnerability in CBOT Chatbot allows Content Spoofing Via Application API Manipulation.

This issue affects Chatbot: before Core: v4.0.3.4 Panel: v4.0.3.7.

Patch / fix

  • CBOT Chatbot Core: v4.0.3.4 Panel: v4.0.3.7

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
partial
Assessed
21 mo ago

Exploit prediction

0.21% chance of exploitation in the next 30 days, higher than 10% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 4.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N

Affected products

  • CBOT Chatbot

Classification

Weakness
  • CWE-1385 Missing Origin Validation in WebSockets
  • CWE-346 Origin Validation Error

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.