CVE-2026-42291: CWE-639: Authorization Bypass Through User-Controlled Key in Syslifters sysreptor
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.
AI Analysis
Technical Summary
SysReptor versions from 2026.4 to before 2026.27 contain an authorization bypass vulnerability (CWE-639) in endpoints handling sharing links for personal notes. Authenticated attackers can exploit this by using victim users' note IDs to list and create sharing links, thereby gaining unauthorized read and write access to those notes. The issue affects both Professional and Community editions, but in Community, all users already have superuser permissions, limiting the practical impact. The vulnerability was fixed in version 2026.27.
Potential Impact
An authenticated attacker can bypass authorization controls to access and modify personal notes of other users by manipulating note IDs. This leads to unauthorized disclosure and modification of sensitive pentest report data. The vulnerability does not affect availability. The Community edition's default superuser permissions mean the vulnerability does not increase access beyond existing privileges in that edition.
Mitigation Recommendations
This vulnerability is patched in sysreptor version 2026.27. Users should upgrade to this version or later to remediate the issue. Since this is not a cloud service, remediation depends on applying the official patch. Patch status is confirmed by the vendor advisory stating the fix is included in version 2026.27.
CVE-2026-42291: CWE-639: Authorization Bypass Through User-Controlled Key in Syslifters sysreptor
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.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
SysReptor versions from 2026.4 to before 2026.27 contain an authorization bypass vulnerability (CWE-639) in endpoints handling sharing links for personal notes. Authenticated attackers can exploit this by using victim users' note IDs to list and create sharing links, thereby gaining unauthorized read and write access to those notes. The issue affects both Professional and Community editions, but in Community, all users already have superuser permissions, limiting the practical impact. The vulnerability was fixed in version 2026.27.
Potential Impact
An authenticated attacker can bypass authorization controls to access and modify personal notes of other users by manipulating note IDs. This leads to unauthorized disclosure and modification of sensitive pentest report data. The vulnerability does not affect availability. The Community edition's default superuser permissions mean the vulnerability does not increase access beyond existing privileges in that edition.
Mitigation Recommendations
This vulnerability is patched in sysreptor version 2026.27. Users should upgrade to this version or later to remediate the issue. Since this is not a cloud service, remediation depends on applying the official patch. Patch status is confirmed by the vendor advisory stating the fix is included in version 2026.27.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- GitHub_M
- Date Reserved
- 2026-04-26T12:13:55.551Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 69fe61e5cbff5d8610367fa5
Added to database: 5/8/2026, 10:21:25 PM
Last enriched: 5/8/2026, 10:37:07 PM
Last updated: 5/9/2026, 2:28:41 AM
Views: 4
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