CVE-2022-4804Public exploitNetwork attack vector

Unauthorized data access via client-supplied owner identifiers

Published Dec 28, 2022 · Updated Apr 10, 2025

Improper authorization in Memos 0.9.0 and earlier allows remote attackers to access or alter another user's application data. API request models accept client-supplied creator, user, and memo identifiers, while handlers fail to bind them consistently to the requester. No authentication or user interaction is required, and successful requests disclose protected records or make limited unauthorized changes.

CVSS severity8.2
High
EPSS probability0.59%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper authorization in Memos 0.9.0 and earlier allows remote attackers to access or alter another user's application data. API request models accept client-supplied creator, user, and memo identifiers, while handlers fail to bind them consistently to the requester. No authentication or user interaction is required, and successful requests disclose protected records or make limited unauthorized changes.

The record

CVE
CVE-2022-4804
Published
Dec 28, 2022
Updated
Apr 10, 2025
Vendor
Memos
Product
Memos
Classifications
CWE-285, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Dec 28, 2022CVE publishedPublication date reported by the CVE source.
  2. Apr 10, 2025Record 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=unspecified <0.9.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Memos · Memosversion=unspecified <0.9.1

Published CVSS scores

5.3NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
8.2huntr.devCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-285Improper Authorization
T1190Exploit Public-Facing Application

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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