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CVE-2023-43662

Arbitrary file read vulnerability in Shoko Server

8.6 High

ShokoServer is a media server which specializes in organizing anime. In affected versions the /api/Image/WithPath endpoint is accessible without authentication and is supposed to return default server images. The endpoint accepts the parameter serverImagePath, which is not sanitized in any way before being passed to System.IO.File.OpenRead, which results in an arbitrary file read. This issue may lead to an arbitrary file read which is exacerbated in the windows installer which installs the ShokoServer as administrator. Any unauthenticated attacker may be able to access sensitive information and read files stored on the server. The /api/Image/WithPath endpoint has been removed in commit 6c57ba0f0 which will be included in subsequent releases. Users should limit access to the /api/Image/WithPath endpoint or manually patch their installations until a patched release is made. This issue was discovered by the GitHub Security lab and is also indexed as GHSL-2023-191.

Attack profile

How easy it is to exploit

Attack vector
Network
Complexity
Low
Privileges needed
None
User interaction
None

What an attacker can affect

Confidentiality
High
Integrity
None
Availability
None

Exploit likelihood

9.11%Up 9.1 points since Sep 29, 2023
90%50%10%1%

What each source reports

CVE List Score used8.6

Arbitrary file read vulnerability in Shoko Server

ShokoServer is a media server which specializes in organizing anime. In affected versions the /api/Image/WithPath endpoint is accessible without authentication and is supposed to return default server images. The endpoint accepts the parameter serverImagePath, which is not sanitized in any way before being passed to System.IO.File.OpenRead, which results in an arbitrary file read. This issue may lead to an arbitrary file read which is exacerbated in the windows installer which installs the ShokoServer as administrator. Any unauthenticated attacker may be able to access sensitive information and read files stored on the server. The /api/Image/WithPath endpoint has been removed in commit 6c57ba0f0 which will be included in subsequent releases. Users should limit access to the /api/Image/WithPath endpoint or manually patch their installations until a patched release is made. This issue was discovered by the GitHub Security lab and is also indexed as GHSL-2023-191.

Record
CVE-2023-43662
CVSS 3.1
8.6 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N
Weakness
CWE-22
Updated
2026-11-02
EUVDEUVD-2023-480508.6

ShokoServer is a media server which specializes in organizing anime. In affected versions the /api/Image/WithPath endpoint is accessible without authentication and is supposed to return default server images. The endpoint accepts the parameter serverImagePath, which is not sanitized in any way before being passed to System.IO.File.OpenRead, which results in an arbitrary file read. This issue may lead to an arbitrary file read which is exacerbated in the windows installer which installs the ShokoServer as administrator. Any unauthenticated attacker may be able to access sensitive information and read files stored on the server. The /api/Image/WithPath endpoint has been removed in commit 6c57ba0f0 which will be included in subsequent releases. Users should limit access to the /api/Image/WithPath endpoint or manually patch their installations until a patched release is made. This issue was discovered by the GitHub Security lab and is also indexed as GHSL-2023-191.

Record
EUVD-2023-48050
CVSS 3.1
8.6 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N
Updated
2026-11-03
NVD8.6

ShokoServer is a media server which specializes in organizing anime. In affected versions the /api/Image/WithPath endpoint is accessible without authentication and is supposed to return default server images. The endpoint accepts the parameter serverImagePath, which is not sanitized in any way before being passed to System.IO.File.OpenRead, which results in an arbitrary file read. This issue may lead to an arbitrary file read which is exacerbated in the windows installer which installs the ShokoServer as administrator. Any unauthenticated attacker may be able to access sensitive information and read files stored on the server. The /api/Image/WithPath endpoint has been removed in commit 6c57ba0f0 which will be included in subsequent releases. Users should limit access to the /api/Image/WithPath endpoint or manually patch their installations until a patched release is made. This issue was discovered by the GitHub Security lab and is also indexed as GHSL-2023-191.

Record
CVE-2023-43662
CVSS 3.1
8.6 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N
Weakness
CWE-22
Updated
2026-11-02
OSV8.6

Arbitrary file read vulnerability in Shoko Server

ShokoServer is a media server which specializes in organizing anime. In affected versions the /api/Image/WithPath endpoint is accessible without authentication and is supposed to return default server images. The endpoint accepts the parameter serverImagePath, which is not sanitized in any way before being passed to System.IO.File.OpenRead, which results in an arbitrary file read. This issue may lead to an arbitrary file read which is exacerbated in the windows installer which installs the ShokoServer as administrator. Any unauthenticated attacker may be able to access sensitive information and read files stored on the server. The /api/Image/WithPath endpoint has been removed in commit 6c57ba0f0 which will be included in subsequent releases. Users should limit access to the /api/Image/WithPath endpoint or manually patch their installations until a patched release is made. This issue was discovered by the GitHub Security lab and is also indexed as GHSL-2023-191.

Record
CVE-2023-43662
CVSS 3.1
8.6 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N
Weakness
CWE-22
Updated
2026-11-02

Affected products

Public exploits

Links only. Every CVE stores no exploit code.

Public exploits
SourceLinkDate
NucleiShokoServer System - Local File Inclusion (LFI)

History

History
RecordedChangedSources
aliases, publishedEUVD
first indexedCVE List, Nuclei, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2023-43662 is a high vulnerability (CVSS 8.6) in Shokoanime Shokoserver, published September 28, 2023. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 9.11%, the 95th percentile. No source names a fixed version.

References

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