CVE-2022-4814Public exploitNetwork attack vector

Memo archiving via missing ownership validation

Published Dec 28, 2022 · Updated Apr 10, 2025

Access control bypass in Memos 0.9.0 and earlier allows remote authenticated users to archive other users' memos via memo IDs. The PATCH /api/memo/:memoId handler looked up the requested memo without reliably enforcing creator ownership before applying rowStatus changes. A valid account and another memo's numeric ID were sufficient to move that memo into the archived state without deleting its stored content.

CVSS severity8.6
High
EPSS probability0.53%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Access control bypass in Memos 0.9.0 and earlier allows remote authenticated users to archive other users' memos via memo IDs. The PATCH /api/memo/:memoId handler looked up the requested memo without reliably enforcing creator ownership before applying rowStatus changes. A valid account and another memo's numeric ID were sufficient to move that memo into the archived state without deleting its stored content.

The record

CVE
CVE-2022-4814
Published
Dec 28, 2022
Updated
Apr 10, 2025
Vendor
Memos
Product
Memos
Classifications
CWE-284, 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

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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 privilegesauthenticated

What is affected?

Memos · Memosversion=unspecified <0.9.1

Published CVSS scores

8.6huntr.devCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:L
4.3NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/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 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-284Improper Access Control
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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