Vulnerability · Published Jun 4, 2026 · Assigned by TR-CERT
CVE-2026-5228Improper Access Control in Kurt Software Studio's WriteUp Mobile App
High 8.8
In plain English
A high-severity improper access control in WriteUp Mobile App from Kurt Software Studio. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 16% of all known vulnerabilities).
Severity (CVSS 3.1)8.8High
Exploit odds (30 days)0.2%top 84.2% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official 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.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Kurt Software Studio | WriteUp Mobile App | 1.3.0 – through 04062026 |
Weakness: CWE-284, CWE-862 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
References
- https://siberguvenlik.gov.tr/guvenlik-bildirimleri/detay/tr-26-0310 government-resource