CVE-2026-15510
Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.
NVD · uneditedA vulnerability was found in Leantime up to 3.8.0. Affected is the function Setting::saveSetting of the component API. The manipulation results in improper authorization. The attack may be performed from remote. The exploit has been made public and could be used. The vendor was contacted early about this disclosure but did not respond in any way.
Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.
dbcve analysis · moderate confidenceLeantime up to version 3.8.0 contains an improper authorization vulnerability in the API's Setting::saveSetting function. This allows remote attackers to save settings without proper authorization checks, potentially modifying application configuration unexpectedly.
Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.
CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.
From the vector- Attack vector
- Network
- Complexity
- Low
- Privileges
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- Low
- Integrity
- Low
- Availability
- Low
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.
dbcve checksWork through these to decide whether this CVE applies to you.
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Confirm Leantime installationLocate the Leantime installation directory on the server. Look for the main index.php or src folder that contains the Leantime application files.Affected if Leantime is not present on the system, the CVE does not apply.
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Check Leantime versionIdentify the installed version by checking the version file, composer.json, or the main application file that contains the version number. Compare it to the affected range: version 3.8.0 and earlier.Affected if The installed version is 3.8.0 or any earlier version.
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Locate the Setting::saveSetting functionSearch the source code for the Setting class and the saveSetting method. In a typical Leantime installation, this would be in the src/core/ or src/api/ directory structure under a file named something like Setting.php or within an API controller handling settings.Affected if The saveSetting function exists in the codebase and is accessible via the API.
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Verify API endpoint accessibilityCheck if the API endpoint that invokes saveSetting is exposed without authentication. This typically involves checking the API routing configuration or the specific endpoint handler for the settings save functionality.Affected if The API endpoint for saving settings is accessible without requiring valid user authentication or authorization.
The environment is affected if Leantime version 3.8.0 or earlier is installed and the Setting::saveSetting API function is accessible without proper authorization checks.
Generated from the published advisory. Verify against your own configuration.
Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.
From vendor dataImplement proper role-based authorization checks in the Setting::saveSetting API function to verify user permissions before allowing any setting modifications.
- Consultation2.0 h
- Implementation4.0 h
- Testing3.0 h
- Review / QA2.0 h
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Free · runs locallyCheck whether your project pulls in CVE-2026-15510 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.
References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.
Primary sourcesPractitioner notes
ContributedPeer-ranked notes from engineers who’ve handled CVE-2026-15510 in production — separate from our analysis above.
The advisory tells you what broke. It rarely tells you what actually worked. If you’ve dealt with this one, that detail is what the next engineer is searching for.
- The version that genuinely resolved it — not the one the vendor claimed
- A config change or rule that shut the vector down
- A gotcha in the upgrade path that cost you an afternoon
No notes yet
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- Version or environment caveats, and links to real fixes
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