CVE-2022-4805Public exploitNetwork attack vector

Cross-user data modification via client-controlled identifiers

Published Dec 28, 2022 · Updated Apr 10, 2025

Improper access control in Memos 0.9.0 and earlier allows remote authenticated users to alter other users' memos and shortcuts via API. Affected handlers decode JSON after setting server-derived resource or owner IDs, allowing request fields to replace those privileged values before datastore operations. Any account can archive another user's private memo or edit and delete another user's shortcuts, without gaining reported read access.

CVSS severity4.3
Medium
EPSS probability0.51%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper access control in Memos 0.9.0 and earlier allows remote authenticated users to alter other users' memos and shortcuts via API. Affected handlers decode JSON after setting server-derived resource or owner IDs, allowing request fields to replace those privileged values before datastore operations. Any account can archive another user's private memo or edit and delete another user's shortcuts, without gaining reported read access.

The record

CVE
CVE-2022-4805
Published
Dec 28, 2022
Updated
Apr 10, 2025
Vendor
Memos
Product
Memos
Classifications
CWE-648, T1565.001
Attack vector
network
Privileges
authenticated

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

Compare your product and version with the public record. A matching version still requires validation against your environment.

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 privilegesauthenticated

What is affected?

Memos · Memosversion=unspecified <0.9.1

Published CVSS scores

4.3NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
7.3huntr.devCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L

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

Weakness, pattern, technique

CWE-648Incorrect Use of Privileged APIs
T1565.001Stored Data Manipulation

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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