CVE-2026-42291 SysReptor: Read-write access to personal notes by sharing-link creation with no authorization in SysReptor Professional
Authenticated attackers can read and modify other users' personal notes by creating sharing links without proper authorization checks.
- 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-2026-42291?
CVE-2026-42291 is a medium-severity missing authorization vulnerability in Syslifters sysreptor, published on 8 May 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
SysReptor is a fully customizable pentest reporting platform. From version 2026.4 to before version 2026.27, the endpoints for reading and creating sharing links for personal notes is not properly authorized. This allows authenticated attackers who obtain the note ID of victim users to list and create sharing links to those users' personal notes. This gives attackers read and write access to notes of other users. This exploit works in both SysReptor Professional and Community. In Community it has, however, no impact because all users have superuser permissions and can list personal notes of other users at /admin/pentests/usernotebookpage/. This issue has been patched in version 2026.27.
Weakness: CWE-639
Which versions are affected by CVE-2026-42291?
How do I fix CVE-2026-42291?
No fix has been published for CVE-2026-42291 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-2026-42291 being exploited?
There is no known exploitation of CVE-2026-42291 in the wild and no public exploit code.
Sources
Also known as GHSA-pcpr-q2qj-3v43.