Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in Orthanc Osimis DICOM Web Viewer

published 2024-01-23 2 y ago modified 2026-06-17 4 mo ago also EUVD-2023-59419

cvss: 7.1; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.3%; EPSS 0.3% chance of exploitation in 30 days, percentile 23%
public exploits: 0; none known

A XSS payload can be uploaded as a DICOM study and when a user tries to view the infected study inside the Osimis WebViewer the XSS vulnerability gets triggered. If exploited, the attacker will be able to execute arbitrary JavaScript code inside the victim's browser.

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

cisa ICSMA-24-023-01 updated 2024-01-23 cvss 7.1

Orthanc Osimis DICOM Web Viewer

Orthanc Osimis WebViewer 1.4.2.0-9d9eff4
affected: mitigation “Orthanc recommends users mitigate this vulnerability by updating to the docker images and windows installers to Orthanc version 24.1.2 or greater.” discourse.orthanc-server.org

From CISA ICS and IT advisories (CSAF, https://github.com/cisagov/CSAF), a U.S. Government work; changed: reduced to products, statuses and remediations. CISA notification · csaf

CISA SSVC

Exploitation: none
Automatable: yes
Technical impact: total
Assessed: 2 y ago (2024-01-24)

Exploit prediction

0.31% chance of exploitation in the next 30 days, higher than 23% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CNA	3.1	7.1	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L
NVD	3.1	6.1	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Affected products

Orthanc Osimis DICOM Web Viewer

Classification

Weakness

CWE-79 Improper Neutralization of Input During Web Page Generation

References

cisa.gov /news-events/ics-medical-advisories/icsma-24-023-01
government-resource, third-party-advisory, us-government-resource

Sources

CVE List CVE-2023-7238
NVD CVE-2023-7238

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary