CVE-2023-0107Public exploitNetwork attack vector

Stored script execution via unsafe memo rendering

Published Jan 7, 2023 · Updated Apr 9, 2025

Stored cross-site scripting in Memos before 0.10.0 allows remote authenticated users to execute script when another user views a crafted memo. MemoContent converted stored Markdown to an HTML string and passed it through highlightWithWord into React's dangerouslySetInnerHTML sink. Exploitation requires permission to create a memo and a second user's interaction with that memo, placing the script in the Memos web origin.

CVSS severity6.5
Medium
EPSS probability0.50%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Stored cross-site scripting in Memos before 0.10.0 allows remote authenticated users to execute script when another user views a crafted memo. MemoContent converted stored Markdown to an HTML string and passed it through highlightWithWord into React's dangerouslySetInnerHTML sink. Exploitation requires permission to create a memo and a second user's interaction with that memo, placing the script in the Memos web origin.

The record

CVE
CVE-2023-0107
Published
Jan 7, 2023
Updated
Apr 9, 2025
Vendor
Memos
Product
Memos
Classifications
CWE-79, T1189
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jan 7, 2023CVE publishedPublication date reported by the CVE source.
  2. Apr 9, 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 <0.10.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Memos · Memosversion=unspecified <0.10.0

Published CVSS scores

5.4NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
6.5huntr.devCVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:C/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-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1189Drive-by Compromise

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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