CVE-2024-6781Public exploitNetwork attack vector

Arbitrary file read via unchecked export path

Published Aug 6, 2024 · Updated Aug 6, 2024

Path traversal in the calibre Content server 7.14.0 and earlier allows remote attackers to read arbitrary UTF-8-compatible files. The /cdb/cmd/export handler passes a request-supplied relative path to copy_extra_file_to(), which joins and opens it without confirming that it remains under the selected book directory. The Content server must be reachable with a valid book ID; default-disabled authentication permits unauthenticated access.

CVSS severity7.5
High
EPSS probability62.44%
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 the calibre Content server 7.14.0 and earlier allows remote attackers to read arbitrary UTF-8-compatible files. The /cdb/cmd/export handler passes a request-supplied relative path to copy_extra_file_to(), which joins and opens it without confirming that it remains under the selected book directory. The Content server must be reachable with a valid book ID; default-disabled authentication permits unauthenticated access.

The record

CVE
CVE-2024-6781
Published
Aug 6, 2024
Updated
Aug 6, 2024
Vendor
Kovid Goyal
Product
calibre
Classifications
CWE-22, CAPEC-139, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 6, 2024CVE publishedPublication date reported by the CVE source.
  2. Aug 6, 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?

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  1. Affected versionversion=7.14.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Kovid Goyal · calibreversion=7.14.0

Published CVSS scores

7.5STAR Labs SGCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/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')
CAPEC-139Relative Path Traversal
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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