CVE-2023-43662Public exploitNetwork attack vector

Unauthenticated file read via unsanitized image path

Published Sep 28, 2023 · Updated Sep 23, 2024

Path traversal in ShokoAnime Shoko Server 4.2.2 and earlier allows remote attackers to read arbitrary server files via crafted image requests. The unauthenticated /api/Image/WithPath endpoint passes its serverImagePath route parameter directly to System.IO.File.OpenRead without constraining it to an image directory. A network-reachable endpoint therefore exposes files readable by the server account; Windows installer deployments run that account as Administrator.

CVSS severity8.6
High
EPSS probability8.15%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Path traversal in ShokoAnime Shoko Server 4.2.2 and earlier allows remote attackers to read arbitrary server files via crafted image requests. The unauthenticated /api/Image/WithPath endpoint passes its serverImagePath route parameter directly to System.IO.File.OpenRead without constraining it to an image directory. A network-reachable endpoint therefore exposes files readable by the server account; Windows installer deployments run that account as Administrator.

The record

CVE
CVE-2023-43662
Published
Sep 28, 2023
Updated
Sep 23, 2024
Vendor
ShokoAnime
Product
Shoko Server
Classifications
CWE-22, T1005
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Sep 28, 2023CVE publishedPublication date reported by the CVE source.
  2. Sep 23, 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=<= 4.2.2

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

ShokoAnime · Shoko Serverversion=<= 4.2.2

Published CVSS scores

8.6GitHub, Inc.CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/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.

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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-22Improper Limitation of a Pathname to a Restricted Directory ('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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