CVE-2026-5228
Improper access control in Kurt WriteUp Mobile App enables access to restricted features.
Is CVE-2026-5228 being exploited?
Not confirmed. CVE-2026-5228 does not appear in CISA's Known Exploited Vulnerabilities catalog, which records only exploitation that has been observed and reported publicly. That is evidence of absence of a report, not evidence the flaw is unattacked. EPSS currently estimates a 0.24% probability of exploitation in the next 30 days.
How severe is CVE-2026-5228?
CVE-2026-5228 is rated High with a CVSS score of 8.8. Severity describes how bad exploitation would be, not how likely it is: pair it with exploitation evidence before deciding what to patch first.
Is there a patch for CVE-2026-5228?
Not known from our data. No patch reference has been recorded for CVE-2026-5228, which is not the same as no patch existing — a fix may have shipped without a tagged reference, or after this record was written. The vendor advisory is the only authority on whether a fix exists, and mitigations may be available regardless.
What does CVE-2026-5228 affect?
CVE-2026-5228 affects WriteUp Mobile App (Kurt Software Studio), Versions 1.3.0 - 04062026. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-5228?
Patch when released; enforce ACLs and monitor abuse.
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
ACL bypass via missing authorization enables unauthorized access to restricted app functions, risking data exposure.
Patch when possible
- affected>= 1.3.0 and <= 04062026
As published in the CVE Program record. A version outside these ranges is not a statement that it is unaffected — vendors sometimes understate a range, and distribution-backported builds carry upstream numbers that do not reflect what was patched into them.