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CVE-2023-42442

52
FAUCET Score

CVE-2023-42442 is an authentication bypass vulnerability affecting JumpServer versions 3.0.0 through 3.5.4 and 3.6.3, allowing unauthenticated download of session replays not stored in cloud storage. This medium-severity vulnerability (CVSS 5.3) has a low attack complexity and can lead to information disclosure (CWE-287). While there is no evidence of active exploitation, public exploit templates exist, and its high EPSS score indicates a significant likelihood of future exploitation. Community discussion and media coverage are currently minimal.

Impacted Technologies

VendorProductVersion(s)CPE
>= 3.0.0, < 3.5.5CPE matchmatch criteria
cpe:2.3:a:fit2cloud:jumpserver:*:*:*:*:*:*:*:*
>= 3.6.0, < 3.6.4CPE matchmatch criteria
cpe:2.3:a:fit2cloud:jumpserver:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

8.2HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
LOW
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
4.2
CvssVersion
3.1

Exploit Intelligence

EPSS Score
55.86%
Probability of exploitation in next 30 days
EPSS Percentile
98.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
Nuclei: CVE-2023-42442 · Sep 20, 2023
This CVE's current EPSS score of 0.5586 is in the 99th percentile among its peer group of 23,705 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (1)

github_advisorypatch availablevia nvd_reference
View patch

References

github.com / jumpserver/jumpserver/blob/v3.6.1/apps/terminal/api/session/session.py
Product
github.com / jumpserver/jumpserver/commit/0a58bba59cd275bab8e0ae58bf4b359fbc5eb74a
Patch
github.com / jumpserver/jumpserver/security/advisories/GHSA-633x-3f4f-v9rw
ExploitVendor Advisory