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CVE-2012-10054

Umbraco CMS remote code execution

9.8 CRITICALPublic exploitEPSS 4.00%
  1. Published13 Aug 2025

Description

Umbraco CMS versions prior to 4.7.1 are vulnerable to unauthenticated remote code execution via the codeEditorSave.asmx SOAP endpoint, which exposes a SaveDLRScript operation that permits arbitrary file uploads without authentication. By exploiting a path traversal flaw in the fileName parameter, attackers can write malicious ASPX scripts directly into the web-accessible /umbraco/ directory and execute them remotely.

CVSS 3.1 breakdown

Attack vectorNetwork
Attack complexityLow
Privileges requiredNone
User interactionNone
ScopeUnchanged
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

Umbraco CMS< 4.7.1

Remediation

Fixed in
Umbraco CMS≥ 4.7.1

References

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Frequently asked

Is CVE-2012-10054 being actively exploited?

CVE-2012-10054 is not in the CISA KEV catalog. A public exploit reference exists, so treat it as exploitable. Its EPSS exploit probability is 4.00%.

How severe is CVE-2012-10054?

CVE-2012-10054 has a CVSS 3.1 base score of 9.8, rated critical. EPSS estimates a 4.00% probability of exploitation.

Which products are affected by CVE-2012-10054?

Affected products include Umbraco CMS.

How do I fix CVE-2012-10054?

Upgrade affected software to a fixed version, for example Umbraco CMS 4.7.1 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2012-10054 against the real software inventory on every managed device, every day. 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.