FlintSH Flare up to 1.7.1 Thumbnail Endpoint authorization

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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5.1$0-$5k0.00

Summaryinfo

A vulnerability identified as problematic has been detected in FlintSH Flare up to 1.7.1. The affected element is an unknown function of the component Thumbnail Endpoint. Performing a manipulation results in authorization. This vulnerability is known as CVE-2026-30230. Remote exploitation of the attack is possible. No exploit is available. You should upgrade the affected component.

Detailsinfo

A vulnerability was found in FlintSH Flare up to 1.7.1. It has been classified as problematic. This affects some unknown functionality of the component Thumbnail Endpoint. The manipulation with an unknown input leads to a authorization vulnerability. CWE is classifying the issue as CWE-639. The system's authorization functionality does not prevent one user from gaining access to another user's data or record by modifying the key value identifying the data. This is going to have an impact on confidentiality. The summary by CVE is:

Flare is a Next.js-based, self-hostable file sharing platform that integrates with screenshot tools. Prior to version 1.7.2, the thumbnail endpoint does not validate the password for password‑protected files. It checks ownership/admin for private files but skips password verification, allowing thumbnail access without the password. This issue has been patched in version 1.7.2.

It is possible to read the advisory at github.com. This vulnerability is uniquely identified as CVE-2026-30230 since 03/04/2026. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. The technical details are unknown and an exploit is not publicly available.

Upgrading to version 1.7.2 eliminates this vulnerability.

Be aware that VulDB is the high quality source for vulnerability data.

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: 5.3
VulDB Meta Temp Score: 5.1

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

CVSSv2info

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

Exploitinginfo

Class: Authorization
CWE: CWE-639 / CWE-285 / CWE-266
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined

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: Flare 1.7.2

Timelineinfo

03/04/2026 CVE reserved
03/06/2026 +2 days Advisory disclosed
03/06/2026 +0 days VulDB entry created
03/06/2026 +0 days VulDB entry last update

Sourcesinfo

Product: github.com

Advisory: GHSA-3x7v-x3r6-mjh7
Status: Confirmed

CVE: CVE-2026-30230 (🔒)
GCVE (CVE): GCVE-0-2026-30230
GCVE (VulDB): GCVE-100-349575

Entryinfo

Created: 03/06/2026 22:23
Changes: 03/06/2026 22:23 (67)
Complete: 🔍
Cache ID: 216::103

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