CVE-2023-4384Public exploitNetwork attack vector

Sensitive cookie disclosure via missing encryption

Published Aug 16, 2023 · Updated Aug 2, 2024

Missing encryption in the Cookie Handler of MáximaTech Portal Executivo 21.9.1.140 allows remote attackers to read sensitive cookie data. Public records do not identify the handler code, affected cookie fields, or operation that omits encryption. Exploitation is unauthenticated but requires high-complexity conditions, and the documented impact is limited to confidentiality.

CVSS severity3.7
Low
EPSS probability0.42%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Missing encryption in the Cookie Handler of MáximaTech Portal Executivo 21.9.1.140 allows remote attackers to read sensitive cookie data. Public records do not identify the handler code, affected cookie fields, or operation that omits encryption. Exploitation is unauthenticated but requires high-complexity conditions, and the documented impact is limited to confidentiality.

The record

CVE
CVE-2023-4384
Published
Aug 16, 2023
Updated
Aug 2, 2024
Vendor
MáximaTech
Product
Portal Executivo
Classifications
CWE-311
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 16, 2023CVE publishedPublication date reported by the CVE source.
  2. Aug 2, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=21.9.1.140

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

MáximaTech · Portal Executivoversion=21.9.1.140

Published CVSS scores

2.6VulDBAV:N/AC:H/Au:N/C:P/I:N/A:N
5.9NIST NVDCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
3.7VulDBCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-311Missing Encryption of Sensitive Data

Public exploit references

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Technologies

Your stack

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Your stack

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