CVE-2024-6782Public exploitNetwork attack vector

Unauthenticated code execution via remote Python templates

Published Aug 6, 2024 · Updated Aug 8, 2024

Improper authorization in the Kovid Goyal calibre Content Server 6.9.0 through 7.14.0 allows remote attackers to execute arbitrary code. The /cdb/cmd/list route passes user-controlled template arguments to cmd_list.implementation(), whose formatter evaluates python-prefixed templates as Python code. The default Content Server configuration has authentication disabled; unauthenticated network access is sufficient, while authenticated access requires a privileged account.

CVSS severity9.8
Critical
EPSS probability84.12%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper authorization in the Kovid Goyal calibre Content Server 6.9.0 through 7.14.0 allows remote attackers to execute arbitrary code. The /cdb/cmd/list route passes user-controlled template arguments to cmd_list.implementation(), whose formatter evaluates python-prefixed templates as Python code. The default Content Server configuration has authentication disabled; unauthenticated network access is sufficient, while authenticated access requires a privileged account.

The record

CVE
CVE-2024-6782
Published
Aug 6, 2024
Updated
Aug 8, 2024
Vendor
Kovid Goyal
Product
calibre
Classifications
CWE-863, CAPEC-253, T1059.006
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 6, 2024CVE publishedPublication date reported by the CVE source.
  2. Aug 8, 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=6.9.0 <=7.14.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Kovid Goyal · calibreversion=6.9.0 <=7.14.0

Published CVSS scores

9.8STAR Labs SG Pte. Ltd.CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-863Incorrect Authorization
CAPEC-253Remote Code Inclusion
T1059.006Command and Scripting Interpreter: Python

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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