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PatchSiren cyber security CVE debrief

CVE-2026-5228 Kurt Software Studio CVE debrief

CVE-2026-5228 is a HIGH-severity vulnerability in the WriteUp Mobile App by Kurt Software Studio. The issue, classified as Improper Access Control and Missing Authorization, allows users to access functionality not properly constrained by Access Control Lists (ACLs). The vulnerability affects WriteUp Mobile App versions from 1.3.0 through 04062026.

Vendor
Kurt Software Studio
Product
WriteUp Mobile App
CVSS
HIGH 8.8
CISA KEV
Not listed in stored evidence
Original CVE published
2026-06-04
Original CVE updated
2026-07-22
Advisory published
2026-06-04
Advisory updated
2026-07-22

Who should care

Users of WriteUp Mobile App, particularly those using versions between 1.3.0 and 04062026, should be aware of this vulnerability. Developers and administrators responsible for the app's security and updates should prioritize patching.

Technical summary

The vulnerability has a CVSS score of 8.8 and is categorized under CWE-284 and CWE-862. It allows attackers with low privileges to access sensitive functionality without proper authorization, potentially leading to high impacts on confidentiality, integrity, and availability.

Defensive priority

HIGH

Recommended defensive actions

  • Apply patches or updates provided by Kurt Software Studio for WriteUp Mobile App to version 04062026 or later.
  • Review and enforce proper Access Control Lists (ACLs) for the app's functionality.
  • Monitor the app's usage and access logs for any suspicious activity.

Evidence notes

The CVE was published on 2026-06-04T16:16:39.640Z and last modified on 2026-06-04T16:23:33.747Z. The vulnerability details were sourced from official CVE and NVD sources.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-5228 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-5228

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2026-5228 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-5228

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

Supplemental references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.