Security readout for executives and security teams
Plain-English summary
This CVE affects legacy Umbraco CMS before 4.7.1. An unauthenticated attacker could upload a server-side script through a vulnerable SOAP endpoint and run code on the web server. For any exposed old Umbraco site, this is a full compromise risk, not just a content-management issue.
Executive priority
Prioritize immediately for any public legacy Umbraco site. The business risk is potential server takeover, website defacement, data access, and lateral movement. If no pre-4.7.1 Umbraco remains exposed, priority drops to confirming inventory and decommissioning stale assets.
Technical view
The reported flaw is in codeEditorSave.asmx, specifically SaveDLRScript. Sources describe missing authentication combined with path traversal in the fileName parameter, allowing arbitrary ASPX files to be written into the web-accessible /umbraco/ path and executed remotely. The bundled CVSS v4.0 score is 9.3.
Likely exposure
Primary exposure is internet-facing Umbraco CMS installations older than 4.7.1, especially legacy ASP.NET/IIS sites. The affected-version metadata in the bundle is incomplete, so asset validation should rely on product version and endpoint exposure rather than CPE matching alone.
Exploitation context
The source bundle includes public exploit references from Metasploit and Exploit-DB, so practical exploitation knowledge is public. KEV is false and the bundle does not cite active exploitation in the wild; treat exploitation as plausible but not confirmed active from these sources.
Researcher notes
Evidence is strong for the vulnerability mechanics and public exploit availability, but incomplete for precise affected-version metadata beyond “prior to 4.7.1.” No source in the bundle proves current active exploitation. Validate by version, endpoint exposure, and file/log evidence, without relying solely on automated CPE data.
Mitigation direction
- Upgrade affected Umbraco CMS installations to 4.7.1 or later vendor-supported releases.
- Remove or isolate unsupported legacy Umbraco sites from the internet.
- Restrict access to /umbraco/ administrative paths where operationally possible.
- Review vendor guidance before applying compensating controls.
- Investigate and remove unexpected ASPX files under web-accessible Umbraco paths.
Validation and detection
- Inventory all Umbraco CMS instances and confirm their exact versions.
- Check whether codeEditorSave.asmx is reachable from untrusted networks.
- Review web logs for requests to codeEditorSave.asmx or SaveDLRScript.
- Inspect /umbraco/ for unexpected or recently modified ASPX files.
- Confirm patch status against the archived 4.7.1 vendor release reference.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CWE-22: File access and web shell behavior lookup
File traversal and upload weaknesses can lead teams to review file, web shell, execution, and collection telemetry. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupCWE-434: File access and web shell behavior lookup
File traversal and upload weaknesses can lead teams to review file, web shell, execution, and collection telemetry. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupExecution behavior lookup
The CVE wording references code or command execution, so execution technique review may help defensive triage. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupFile access behavior lookup
The CVE wording references file access or upload behavior, so file telemetry and web shell review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2012-10054 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Critical
- CVSS
- 9.3 (4.0)
- Known Exploited
- No
- Published
Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
SSVC decision data
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N——VulnCheckVulnerability scoring details
Base CVSS 4.0 score
9.3CriticalVector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Vulnerability timeline
Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.
- CVE reservedCVE Program
The CVE ID was reserved by the assigning CNA.
- CVE publishedCVE Program
The CVE record was published.
- CVE updatedCVE Program
The CVE record metadata indicates this as the latest update time.
ADP provider summaries
Source materials
- CVE List V5 sourceCVE List V5
- https://raw.githubusercontent.com/rapid7/metasploit-framework/master/modules/exploits/windows/http/umbraco_upload_aspx.rbCVE reference, VulnCheck · exploit
- https://www.exploit-db.com/exploits/19671CVE reference, VulnCheck · exploit
- https://web.archive.org/web/20120707033729/http://blog.gdssecurity.com/labs/2012/7/3/find-bugs-faster-with-a-webmatrix-local-reference-instance.htmlCVE reference, VulnCheck · technical-description, exploit
- https://github.com/umbraco/Umbraco-CMSCVE reference, VulnCheck · product
- https://web.archive.org/web/20111017174609/http://umbraco.codeplex.com/releases/view/73692CVE reference, VulnCheck · vendor-advisory, patch
- https://www.vulncheck.com/advisories/umbraco-cms-rceCVE reference, VulnCheck · third-party-advisory
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.