CVE-2023-42442Public exploitNetwork attack vector

Unauthenticated session replay disclosure via permission OR

Published Sep 15, 2023 · Updated Sep 25, 2024

Improper authentication in JumpServer 3.0.0 through 3.5.4 and 3.6.0 through 3.6.3 allows remote attackers to download session replays. SessionViewSet combines RBACPermission and IsSessionAssignee with OR, while the latter inherits a view-level permission result of true. No account or user interaction is required, but replays stored in S3, OSS, or other cloud storage are not exposed by this path.

CVSS severity8.2
High
EPSS probability58.54%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper authentication in JumpServer 3.0.0 through 3.5.4 and 3.6.0 through 3.6.3 allows remote attackers to download session replays. SessionViewSet combines RBACPermission and IsSessionAssignee with OR, while the latter inherits a view-level permission result of true. No account or user interaction is required, but replays stored in S3, OSS, or other cloud storage are not exposed by this path.

The record

CVE
CVE-2023-42442
Published
Sep 15, 2023
Updated
Sep 25, 2024
Vendor
JumpServer
Product
JumpServer
Classifications
CWE-287, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Sep 15, 2023CVE publishedPublication date reported by the CVE source.
  2. Sep 25, 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=>= 3.0.0, < 3.5.5
  2. Affected versionversion=>= 3.6.0, < 3.6.4

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

JumpServer · JumpServerversion=>= 3.0.0, < 3.5.5; version=>= 3.6.0, < 3.6.4

Published CVSS scores

5.3NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
8.2GitHub, Inc.CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H

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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-287Improper Authentication
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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