What is CVE-2026-5228?

CVE-2026-5228 is a high-severity vulnerability in Kurt Software Studio Writeup Mobile App, classified under Improper Access Control. CVSS score: 8.8/10. Published 2026-06-04.

How severe is CVE-2026-5228?

High severity. CVSS v3 base score is 8.8 out of 10.

Auth bypass in Kurt Software Studio Writeup Mobile App

CVE-2026-5228

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.

Published 2026-06-04 · last modified 2026-07-22.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.004 (33.6th percentile), scored 2026-10-01.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 34th percentile — 33.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.002 · newest: 0.004 · change: +0.002

Affected products

Kurt Software Studio Writeup Mobile App — versions 1.3.0

Weakness classification (CWE)

References

siberguvenlik.gov.tr/guvenlik-bildirimleri/detay/tr-26-0310 (government-resource)

Frequently asked questions

What is CVE-2026-5228?: CVE-2026-5228 is a high-severity vulnerability in Kurt Software Studio Writeup Mobile App, classified under Improper Access Control. CVSS score: 8.8/10. Published 2026-06-04.
How severe is CVE-2026-5228?: High severity. CVSS v3 base score is 8.8 out of 10.