Is CVE-2026-42291 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-42291 being exploited in the wild.

How severe is CVE-2026-42291?

Medium severity, with a CVSS score of 6.8, published 8 May 2026.

Which products and versions are affected?

Syslifters SysReptor 2026.4 to 2026.26.

Is there a fix for CVE-2026-42291?

A patch was published on 2026-04-22: Fixed in version 2026.27 Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

How is CVE-2026-42291 attacked?

It is attacked over the network, in a network appliance.

Am I affected by CVE-2026-42291?

Check whether you run Syslifters SysReptor at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

CVE-2026-42291: Syslifters SysReptor authorization bypass in personal notes

CVE-2026-42291 · Severity: medium · CVSS 6.8 · Published 2026-05-08

SysReptor is a platform used by security professionals to create and manage penetration testing reports. A security flaw in the Professional version allows logged-in users to access or modify the private notes of other users if they can guess or obtain a specific note identifier. This could lead to the exposure of sensitive security findings or unauthorized changes to project documentation.

Technologies: Syslifters SysReptor. Vendors: Syslifters.

Quick answers

Is CVE-2026-42291 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-42291 being exploited in the wild.
How severe is CVE-2026-42291?: Medium severity, with a CVSS score of 6.8, published 8 May 2026.
Which products and versions are affected?: Syslifters SysReptor 2026.4 to 2026.26.
Is there a fix for CVE-2026-42291?: A patch was published on 2026-04-22: Fixed in version 2026.27 Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2026-42291 attacked?: It is attacked over the network, in a network appliance.
Am I affected by CVE-2026-42291?: Check whether you run Syslifters SysReptor at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

An Insecure Direct Object Reference (IDOR) vulnerability exists in SysReptor's personal notes functionality due to improper authorization checks on specific API endpoints. Authenticated attackers who obtain a victim's note ID can list and create sharing links for those notes, granting them unauthorized read and write access. While the vulnerability exists in both Community and Professional editions, it primarily impacts the Professional edition's multi-user security model; in the Community edition, all users are superusers by default. The issue is classified as CWE-639 (Authorization Bypass Through User-Controlled Key) and has been patched in version 2026.27.

Affected products

Syslifters SysReptor 2026.4 to 2026.26

Timeline

2026-04-21: disclosed: Vulnerability reported by Robin Lunde (@pwnpanda)
2026-04-22: patched: Fixed in version 2026.27
2026-05-08: advisory: CVE-2026-42291 published

References

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