Security readout for executives and security teams
Plain-English summary
Orthanc Explorer 2 versions through 1.12.0 have a URL-handling flaw that can let attacker-controlled content run in a user’s browser. The issue needs a victim interaction, but the attack can be initiated remotely and public exploit material is referenced.
Executive priority
Treat this as a timely, moderate-risk web application issue. It is not confirmed as actively exploited, but public exploit availability and healthcare-adjacent operational sensitivity justify prompt patch validation and exposure reduction.
Technical view
CVE-2026-10173 is reported as cross-site scripting in WebApplication/src/components/StudyList.vue, triggered through the remote-source URL argument. CVSS v4.0 is 5.3: network reachable, low complexity, no privileges, user interaction required, and low integrity impact. Sources also list CWE-79 and CWE-94.
Likely exposure
Exposure is limited to deployments running Orthanc Explorer 2 versions 1.0 through 1.12.0. Risk is higher where the Explorer web interface is reachable by untrusted users or where staff may open attacker-supplied links.
Exploitation context
The source bundle says an exploit is public and could be used, but KEV status is false and no cited source confirms active exploitation. The CVSS vector requires user interaction, so phishing or link-following is the likely path.
Researcher notes
The public record identifies the affected component and parameter but does not provide complete vendor release guidance in the bundle. Avoid assuming broader Orthanc server impact beyond Explorer 2. Track issue #108 and the referenced patch for confirmation of final upstream handling.
Mitigation direction
- Apply the referenced patch 21f78ce5da668bf5233efcd1896ec7c6e3b22eae where applicable.
- Check Orthanc project guidance for a fixed release or official remediation path.
- Limit access to Orthanc Explorer 2 while remediation is pending.
- Prioritize remediation for internet-exposed or broadly accessible Explorer instances.
Validation and detection
- Inventory Orthanc Explorer 2 deployments and record installed versions.
- Flag versions 1.0 through 1.12.0 as affected.
- Verify the referenced patch or an official fixed release is present.
- Review web access records for unusual remote-source URL usage.
- Confirm URL-supplied values are safely encoded in the StudyList view.
Public sources used
- CVE Program
- CVE List V5
- VDB-367430 | Orthanc Explorer 2 URL StudyList.vue cross site scripting
- VDB-367430 | CTI Indicators (IOB, IOC, TTP, IOA)
- CVE-2026-10173 | CVE Analysis and Report
- Submit #819559 | orthanc orthanc-server/orthanc-explorer-2 < = 1.12.0 Cross Site Scripting
- Orthanc Explorer 2 issue #108
- Referenced patch commit 21f78ce5da668bf5233efcd1896ec7c6e3b22eae
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-79: User-session and phishing behavior lookup
Client-side and session-facing weaknesses should be reviewed alongside initial-access and user-execution behaviors. 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-94: Code execution behavior lookup
Code execution and unsafe deserialization weaknesses often justify reviewing execution behavior and process 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 lookupCVE-2026-10173 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
- Medium
- CVSS
- 5.3 (4.0)
- Known Exploited
- No
- Published
Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:P
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
4 official scoresWe 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:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:P——VulDBAV:N/AC:L/Au:N/C:N/I:P/A:N/E:POC/RL:OF/RC:C102.9VulDBCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N/E:P/RL:O/RC:C2.81.4VulDBCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N/E:P/RL:O/RC:C2.81.4VulDBVulnerability scoring details
Base CVSS 4.0 score
5.3MediumVector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:P
Base CVSS 3.1 score
4.3MediumVector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N/E:P/RL:O/RC:C
Base CVSS 3.0 score
4.3MediumVector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N/E:P/RL:O/RC:C
Base CVSS 2.0 score
5MediumVector: AV:N/AC:L/Au:N/C:N/I:P/A:N/E:POC/RL:OF/RC:C
Vulnerability timeline
Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.
- Source timelineVulDB
Advisory disclosed
- Source timelineVulDB
VulDB entry created
- CVE reservedCVE Program
The CVE ID was reserved by the assigning CNA.
- Source timelineVulDB
VulDB entry last update
- 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
- VDB-367430 | Orthanc Explorer 2 URL StudyList.vue cross site scriptingCVE reference, VulDB · vdb-entry, technical-description
- VDB-367430 | CTI Indicators (IOB, IOC, TTP, IOA)CVE reference, VulDB · signature, permissions-required
- CVE-2026-10173 | CVE Analysis and ReportCVE reference, VulDB · third-party-advisory
- Submit #819559 | orthanc orthanc-server/orthanc-explorer-2 < = 1.12.0 Cross Site ScriptingCVE reference, VulDB · third-party-advisory
- https://github.com/orthanc-server/orthanc-explorer-2/issues/108CVE reference, VulDB · exploit, issue-tracking
- https://github.com/rafaelsouzars/orthanc-explorer-2/commit/21f78ce5da668bf5233efcd1896ec7c6e3b22eaeCVE reference, VulDB · patch
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.
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.
Improper Control of Generation of Code ('Code Injection')
Improper Control of Generation of Code ('Code Injection') represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.