Puemos Craftplan up to 0.5.0 Settings API Endpoint access control

CVSS Meta Temp Score
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CTI Interest Score
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5.5$0-$5k0.67

Summaryinfo

A vulnerability was found in Puemos Craftplan up to 0.5.0. It has been classified as problematic. This issue affects some unknown processing of the component Settings API Endpoint. This manipulation causes access control. The identification of this vulnerability is CVE-2026-76876. It is possible to initiate the attack remotely. There is no exploit available.

Detailsinfo

A vulnerability was found in Puemos Craftplan up to 0.5.0. It has been declared as problematic. Affected by this vulnerability is an unknown code block of the component Settings API Endpoint. The manipulation with an unknown input leads to a access control vulnerability. The CWE definition for the vulnerability is CWE-284. The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor. As an impact it is known to affect confidentiality. The summary by CVE is:

Craftplan before 0.5.1 contains a broken access control vulnerability that allows unauthenticated attackers to read sensitive credentials by exploiting an unconditional authorization policy on the Settings resource. Attackers can send a GET request to the settings API endpoint with a valid record ID to retrieve decrypted SMTP passwords, email API keys, and email API secrets due to the read policy using an always-allow authorization check that bypasses all identity verification.

The advisory is shared at github.com. This vulnerability is known as CVE-2026-76876 since 08/19/2026. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1068 for this issue.

Upgrading to version 0.5.1 eliminates this vulnerability.

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Productinfo

Vendor

Name

Version

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA CVSS-B Score: 🔒
CNA CVSS-BT Score: 🔒
CNA Vector: 🔒

CVSSv3info

VulDB Meta Base Score: 5.6
VulDB Meta Temp Score: 5.5

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 5.9
CNA Vector (VulnCheck): 🔒

CVSSv2info

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

Exploitinginfo

Class: Access control
CWE: CWE-284 / CWE-266
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined
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: Craftplan 0.5.1

Timelineinfo

08/19/2026 CVE reserved
08/21/2026 +2 days Advisory disclosed
08/21/2026 +0 days VulDB entry created
08/21/2026 +0 days VulDB entry last update

Sourcesinfo

Product: github.com

Advisory: github.com
Status: Confirmed

CVE: CVE-2026-76876 (🔒)
GCVE (CVE): GCVE-0-2026-76876
GCVE (VulDB): GCVE-100-394189

Entryinfo

Created: 08/21/2026 21:59
Changes: 08/21/2026 21:59 (76)
Complete: 🔍
Cache ID: 216::103

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