Is CVE-2026-15510 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-15510 being exploited in the wild.

How severe is CVE-2026-15510?

Medium severity, with a CVSS score of 6.3, published 12 July 2026.

Is there a fix for CVE-2026-15510?

No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

How is CVE-2026-15510 attacked?

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

Am I affected by CVE-2026-15510?

Check whether you run Leantime 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-2026-15510: Leantime improper authorization in Setting::saveSetting API

CVE-2026-15510 · Severity: medium · CVSS 6.3 · Published 2026-07-12

Leantime is an open-source project management platform. A security flaw in its internal communication system allows any logged-in user, even those with restricted "read-only" access, to modify global application settings. This could allow an attacker to disrupt operations by changing company branding, tampering with email integration settings, or disabling security and telemetry features across the entire organization.

Technologies: Leantime. Vendors: Leantime.

Quick answers

Is CVE-2026-15510 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-15510 being exploited in the wild.
How severe is CVE-2026-15510?: Medium severity, with a CVSS score of 6.3, published 12 July 2026.
Which products and versions are affected?: Leantime up to 3.8.0.
Is there a fix for CVE-2026-15510?: No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
How is CVE-2026-15510 attacked?: It is attacked over the network, in a network appliance.
Am I affected by CVE-2026-15510?: Check whether you run Leantime 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

A broken access control vulnerability exists in the Leantime JSON-RPC API. The 'Setting::saveSetting' function fails to perform adequate authorization checks to ensure the caller has administrative privileges. An authenticated attacker with any valid account (including read-only, commenter, or editor roles) can send a crafted POST request to the '/api/jsonrpc' endpoint to overwrite global application settings in the 'zp_settings' table. This can be used to tamper with instance-wide configurations such as SMTP settings, integration keys, and feature toggles. The exploit has been publicly disclosed, and as of the advisory date, the vendor has not responded to the report.

Affected products

Leantime Leantime up to 3.8.0

Timeline

2026-06-02: disclosed: Reported to vendor and submitted to VulDB
2026-07-12: advisory: NVD/VulDB publication date

References

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