CVE-2023-50871Network attack vector

Unauthorized inline-comment modification via omitted permission check

Published Dec 15, 2023 · Updated Aug 2, 2024

Improper authorization in JetBrains YouTrack before 2023.3.22268 allows remote authenticated users to modify inline comments in thread replies. The thread-reply inline-comment path omits the authorization check that should restrict changes to permitted users. A low-privileged account can therefore alter inline-comment data without the required permission; no confidentiality or availability impact is reported.

CVSS severity4.3
Medium
EPSS probability0.45%
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 JetBrains YouTrack before 2023.3.22268 allows remote authenticated users to modify inline comments in thread replies. The thread-reply inline-comment path omits the authorization check that should restrict changes to permitted users. A low-privileged account can therefore alter inline-comment data without the required permission; no confidentiality or availability impact is reported.

The record

CVE
CVE-2023-50871
Published
Dec 15, 2023
Updated
Aug 2, 2024
Vendor
JetBrains
Product
YouTrack
Classifications
CWE-285, T1565.001
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Dec 15, 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=0 <2023.3.22268

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

JetBrains · YouTrackversion=0 <2023.3.22268

Published CVSS scores

4.3NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
4.3JetBrains s.r.o.CVSS: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 exploitUnconfirmed

Weakness, pattern, technique

CWE-285Improper Authorization
T1565.001Stored Data Manipulation

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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