CVE-2026-41315
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 · uneditedmdserver-web is a simple Linux panel. From 0.18.0 to 0.18.4, mdserver-web has a front-end unauthorized remote command execution vulnerability. Due to the lack of authentication on the /modify_crond and /start_task interfaces, it is possible to modify the default built-in scheduled tasks and start them, achieving RCE.
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 · high confidencemdserver-web versions 0.18.0 through 0.18.4 contain an authentication bypass vulnerability in the /modify_crond and /start_task API endpoints. Unauthenticated attackers can modify built-in scheduled tasks and execute them, achieving remote command execution on the affected server.
Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.
Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.
NVD · CPE data>= 0.18.0, <= 0.18.4CVSS 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
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
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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Identify if mdserver-web is installedLocate the mdserver-web installation directory, typically found in common web server paths like /www/server/mdserver-web or check system services for mdserver-web processesAffected if mdserver-web is present on the system
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Determine the installed versionCheck the version file or banner within the mdserver-web installation directory, commonly found in version.json, info.php, or the main executable metadataAffected if The installed version is 0.18.0, 0.18.1, 0.18.2, 0.18.3, or 0.18.4
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Verify API endpoints are network accessibleAttempt to access or probe the /modify_crond and /start_task API endpoints from an untrusted network perspective, or check firewall/ reverse proxy configurations that may expose these endpointsAffected if The endpoints are reachable from untrusted networks without authentication
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Inspect scheduled task configurationsReview the crond configuration files or task definitions managed by mdserver-web for any unauthorized modifications, unexpected commands, or new tasks that were not created by administratorsAffected if Scheduled tasks contain unfamiliar commands, scripts, or have been modified without administrator action
A user is affected if mdserver-web version 0.18.0 through 0.18.4 is installed AND the /modify_crond or /start_task API endpoints are accessible, regardless of authentication.
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 dataUpgrade mdserver-web to a version beyond 0.18.4. If no patched version is available, implement network-level access controls to restrict access to the vulnerable endpoints until a fix is released.
- Consultation3.0 h
- Implementation6.0 h
- Testing4.0 h
- Review / QA2.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2026-41315 — 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-2026-41315 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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- Verified mitigations, workarounds, and config changes
- Version or environment caveats, and links to real fixes
- No weaponised exploit code, or anything meant to cause harm
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