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CVE-2026-46492

Commenthol Md-fileserver cross-site scripting (XSS)

7.2 HIGHPublic exploitEPSS 0.34%
  1. Published9 Jun 2026

Description

md-fileserver allows for local viewing of markdown files in a browser. Prior to version 1.10.3, a cross-site scripting (XSS) vulnerability exists in the application’s Markdown rendering logic. When user-supplied Markdown content is rendered, embedded raw HTML—including <script> tags—is processed and injected into the resulting page without sanitization, allowing arbitrary JavaScript execution in the context of the affected domain. This issue has been patched in version 1.10.3.

CVSS 3.1 breakdown

Attack vectorNetwork
Attack complexityLow
Privileges requiredNone
User interactionNone
ScopeChanged
ConfidentialityLow
IntegrityLow
AvailabilityNone
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N

Affected products

Commenthol Md-fileserver< 1.10.3

Remediation

Fixed in
Commenthol Md-fileserver≥ 1.10.3

References

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Frequently asked

Is CVE-2026-46492 being actively exploited?

CVE-2026-46492 is not in the CISA KEV catalog. A public exploit reference exists, so treat it as exploitable. Its EPSS exploit probability is 0.34%.

How severe is CVE-2026-46492?

CVE-2026-46492 has a CVSS 3.1 base score of 7.2, rated high. EPSS estimates a 0.34% probability of exploitation.

Which products are affected by CVE-2026-46492?

Affected products include Commenthol Md-fileserver.

How do I fix CVE-2026-46492?

Upgrade affected software to a fixed version, for example Commenthol Md-fileserver 1.10.3 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2026-46492 against the real software inventory on every managed device, as each hourly inventory arrives. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.