CVE-2022-31530Public exploitNetwork attack vector

File disclosure via absolute path traversal

Published Jul 11, 2022 · Updated Aug 3, 2024

Absolute path traversal in CSM Server 3.5 and earlier allows remote attackers to read arbitrary server files through a crafted request. The download_doc_central_log route passes its file_path query parameter through os.path.join directly to Flask send_file, so an absolute path replaces the intended base directory. The unauthenticated route exposes files readable by the service account; repeated large-file requests also interrupt service.

CVSS severity9.3
Critical
EPSS probability1.30%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Absolute path traversal in CSM Server 3.5 and earlier allows remote attackers to read arbitrary server files through a crafted request. The download_doc_central_log route passes its file_path query parameter through os.path.join directly to Flask send_file, so an absolute path replaces the intended base directory. The unauthenticated route exposes files readable by the service account; repeated large-file requests also interrupt service.

The record

CVE
CVE-2022-31530
Published
Jul 11, 2022
Updated
Aug 3, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-36, T1005
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jul 11, 2022CVE publishedPublication date reported by the CVE source.
  2. Aug 3, 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?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

9.3OSVCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/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.

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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-36Absolute Path Traversal
T1005Data from Local System

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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