crocodilestick Calibre-Web-Automated up to 4.0.6 Kobo auth-token Route cps/kobo_auth.py generate_auth_token improper authorization

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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5.7$0-$5k0.00

Summaryinfo

A vulnerability marked as critical has been reported in crocodilestick Calibre-Web-Automated up to 4.0.6. Affected by this issue is the function generate_auth_token of the file cps/kobo_auth.py of the component Kobo auth-token Route. This manipulation causes improper authorization. The identification of this vulnerability is CVE-2026-7713. It is possible to initiate the attack remotely. Furthermore, there is an exploit available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability was found in crocodilestick Calibre-Web-Automated up to 4.0.6. It has been declared as critical. Affected by this vulnerability is the function generate_auth_token of the file cps/kobo_auth.py of the component Kobo auth-token Route. The manipulation with an unknown input leads to a improper authorization vulnerability. The CWE definition for the vulnerability is CWE-285. The product does not perform or incorrectly performs an authorization check when an actor attempts to access a resource or perform an action. As an impact it is known to affect confidentiality, integrity, and availability.

The advisory is shared at github.com. This vulnerability is known as CVE-2026-7713. The exploitation appears to be easy. The attack can be launched remotely. Technical details and also a public exploit are known. MITRE ATT&CK project uses the attack technique T1548.002 for this issue.

It is possible to download the exploit at gist.github.com. It is declared as proof-of-concept.

Upgrading to version 4.0.7 eliminates this vulnerability. The upgrade is hosted for download at github.com. Applying the patch 9f50bb2c16160564c9f8777dc2ceed3eb95e4807 is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2026-26854). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

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Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.3
VulDB Meta Temp Score: 5.7

VulDB Base Score: 6.3
VulDB Temp Score: 5.7
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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💳💳💳💳💳💳
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Improper authorization
CWE: CWE-285 / CWE-266
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Access: Public
Status: Proof-of-Concept
Download: 🔒

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Calibre-Web-Automated 4.0.7
Patch: 9f50bb2c16160564c9f8777dc2ceed3eb95e4807

Timelineinfo

05/03/2026 Advisory disclosed
05/03/2026 +0 days VulDB entry created
05/04/2026 +1 days VulDB entry last update

Sourcesinfo

Product: github.com

Advisory: 1303
Status: Confirmed
Confirmation: 🔒

CVE: CVE-2026-7713 (🔒)
GCVE (CVE): GCVE-0-2026-7713
GCVE (VulDB): GCVE-100-360889
EUVD: 🔒
scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 05/03/2026 10:04
Updated: 05/04/2026 03:45
Changes: 05/03/2026 10:04 (64), 05/04/2026 03:45 (1)
Complete: 🔍
Submitter: JasperX
Cache ID: 216::103

Submitinfo

Accepted

  • Submit #806403: crocodilestick Calibre-Web-Automated v1.0.0-v4.0.6 IDOR in auth-token generation leading to account takeover (by JasperX)

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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