CVE-2026-5228 Improper Access Control in Kurt Software Studio's WriteUp Mobile App
Attackers can access functionality not properly constrained by ACLs in the WriteUp Mobile App, potentially reading or modifying data.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-5228?
CVE-2026-5228 is a high-severity missing authorization vulnerability in Kurt Software Studio WriteUp Mobile App, published on 4 Jun 2026. Any signed-in user can exploit it over the network, with no action from the victim.
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.
Which versions are affected by CVE-2026-5228?
How do I fix CVE-2026-5228?
No fix has been published for CVE-2026-5228 yet. Limit exposure of the affected software until one is available.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2026-5228 being exploited?
There is no known exploitation of CVE-2026-5228 in the wild and no public exploit code.
Sources
Also known as GHSA-q2v7-xv64-8j7v.