CVE-2026-5228

HIGHPre-NVD 8.88.8—Trending — 3 sources updated this week

8.8

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.

CVSS v3: 8.8
EG Score: 8.8(high)
EPSS: 11.9%
KEV: Not listed

Published

June 4, 2026

Last Modified

June 4, 2026

Advisory Details (1)

Auto-updated Jun 4, 2026

No patch confirmed yet.

generic

T.C. Siber Güvenlik Başkanlığı

https://siberguvenlik.gov.tr/guvenlik-bildirimleri/detay/tr-26-0310

Vendor Advisories for CVE-2026-5228(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

GHSA-q2v7-xv64-8j7v
GitHub Security AdvisoriesHigh
Improper Access Control, Missing Authorization vulnerability in Kurt Software Studio WriteUp...

Weakness Classification(2)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 20× in last 7d / 20× in last 30d)

Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.

2026-06-08 14:17 UTCepss_batch
2026-06-08 10:24 UTCEG score recompute
2026-06-08 10:24 UTCGHSA enrichment
2026-06-07 23:04 UTCEG score recompute
2026-06-07 23:04 UTCGHSA enrichment
2026-06-07 15:25 UTCepss_batch
2026-06-07 11:43 UTCEG score recompute
2026-06-07 11:43 UTCGHSA enrichment
2026-06-07 00:23 UTCEG score recompute
2026-06-07 00:23 UTCGHSA enrichment
2026-06-06 13:47 UTCepss_batch
2026-06-06 13:03 UTCEG score recompute
2026-06-06 13:03 UTCGHSA enrichment
2026-06-06 01:42 UTCEG score recompute
2026-06-06 01:42 UTCGHSA enrichment
2026-06-05 22:47 UTCepss_batch
2026-06-05 14:22 UTCEG score recompute
2026-06-05 14:22 UTCGHSA enrichment
2026-06-05 03:01 UTCEG score recompute
2026-06-05 03:01 UTCGHSA enrichment

Frequently asked(5)

What is CVE-2026-5228?

CVE-2026-5228 is a high vulnerability published on June 4, 2026. 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.

When was CVE-2026-5228 disclosed?

CVE-2026-5228 was first published in the National Vulnerability Database on June 4, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2026-5228 actively exploited?

CVE-2026-5228 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 11.9% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2026-5228?

CVE-2026-5228 has a CVSS v3 base score of 8.8 (NVD).

How do I remediate CVE-2026-5228?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-5228, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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CVE-2026-5228

📅 Published

🔄 Last Modified

📋 Advisory Details (1)

T.C. Siber Güvenlik Başkanlığı

📣 Vendor Advisories for CVE-2026-5228(1)

Weakness Classification(2)

Data Freshness Timeline

❓ Frequently asked(5)