CVE-2023-44962Public exploitNetwork attack vector

Unauthenticated arbitrary server file disclosure

Published Oct 11, 2023 · Updated Sep 18, 2024

Unrestricted file upload in Koha Library Software 23.05.04 and earlier allows remote attackers to read arbitrary server files. Published sources identify upload-cover-image.pl as the vulnerable locus but do not disclose the exact validation or file-handling error. No authentication or user interaction is required, and the reported consequence is confidential file disclosure without modification or service interruption.

CVSS severity5.3
Medium
EPSS probability0.96%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Unrestricted file upload in Koha Library Software 23.05.04 and earlier allows remote attackers to read arbitrary server files. Published sources identify upload-cover-image.pl as the vulnerable locus but do not disclose the exact validation or file-handling error. No authentication or user interaction is required, and the reported consequence is confidential file disclosure without modification or service interruption.

The record

CVE
CVE-2023-44962
Published
Oct 11, 2023
Updated
Sep 18, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-434, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Oct 11, 2023CVE publishedPublication date reported by the CVE source.
  2. Sep 18, 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

5.3NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/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-434Unrestricted Upload of File with Dangerous Type
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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