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Fencer Vulns
critical 9.4

CVE-2022-3741 json

Improper Restriction of Excessive Authentication Attempts in chatwoot/chatwoot

published 2022-10-28 4 y ago modified 2026-06-17 4 mo ago also EUVD-2022-43097

cvss
9.4
version 3.0, CNA
cisa kev
Not listed
not in CISA's catalog
epss
1.2%
EPSS 1.2% chance of exploitation in 30 days, percentile 69%
public exploits
0
none known

Summary

Impact varies for each individual vulnerability in the application. For generation of accounts, it may be possible, depending on the amount of system resources available, to create a DoS event in the server. These accounts still need to be activated; however, it is possible to identify the output Status Code to separate accounts that are generated and waiting for email verification. \n\nFor the sign in directories, it is possible to brute force login attempts to either login portal, which could lead to account compromise.

Patch / fix

  • chatwoot chatwoot/chatwoot v2.10.0

CISA SSVC

Exploitation
Proof of concept is public
Automatable
no
Technical impact
partial
Assessed
18 mo ago

Exploit prediction

1.23% chance of exploitation in the next 30 days, higher than 69% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • huntr.dev https://huntr.dev/bounties/46f6e07e-f438-4540-938a-510047f987d0 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
CNA 3.0 9.4 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L
NVD 3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

  • chatwoot chatwoot/chatwoot

Classification

Weakness
  • CWE-307 Improper Restriction of Excessive Authentication Attempts

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.