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CVE-2026-5228— Improper Access Control in Kurt Software Studio's WriteUp Mobile App

Quick assessment

Affected
Kurt Software Studio WriteUp Mobile App
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Kurt Yazılım WriteUp Mobile App是土耳其Kurt Yazılım公司的一个故事创作与阅读社区平台。 Kurt Yazılım WriteUp Mobile App 1.3.0版本至04062026版本存在安全漏洞，该漏洞源于访问控制不当和授权缺失，可能导致访问未正确受ACL限制的功能。

CVSS 8.8 · High EPSS 0.42% · P34

Possible ATT&CK Techniques 1 AI

T1078 · Valid Accounts

Affected Version Matrix 1

VendorProduct Version RangeStatus
Kurt Software Studio WriteUp Mobile App 1.3.0≤ 04062026 affected
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I. Basic Information for CVE-2026-5228

Vulnerability Information
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Vulnerability Title
Improper Access Control in Kurt Software Studio's WriteUp Mobile App
Source: CVE Program / CVE List V5
Vulnerability Description
Improper Access Control, Missing Authorization vulnerability in Kurt Software Studio WriteUp Mobile App allows Accessing Functionality Not Properly Constrained by ACLs. This issue affects WriteUp Mobile App: from 1.3.0 through 04062026.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
访问控制不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
Kurt Yazılım WriteUp Mobile App 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Kurt Yazılım WriteUp Mobile App是土耳其Kurt Yazılım公司的一个故事创作与阅读社区平台。 Kurt Yazılım WriteUp Mobile App 1.3.0版本至04062026版本存在安全漏洞，该漏洞源于访问控制不当和授权缺失，可能导致访问未正确受ACL限制的功能。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Kurt Software Studio WriteUp Mobile App 1.3.0 ~ 04062026 -

II. Public POCs for CVE-2026-5228

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III. Intelligence Information for CVE-2026-5228

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Vendor Advisories for CVE-2026-5228 (1)

IV. Related Vulnerabilities

Same weakness: CWE-284

V. Comments for CVE-2026-5228

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