Reflected XSS Vulnerability in Goobi Viewer by Intranda
CVE-2026-55486

9.3CRITICAL

Key Information:

Vendor

Intranda

Status
Goobi-viewer-core
Vendor
CVE Published:
23 October 2026

What is CVE-2026-55486?

A reflected XSS vulnerability exists in the Goobi Viewer web application that allows attackers to manipulate the origin query parameter in IIIF Auth 2.0 endpoints. This oversight permits an unvalidated origin value to be embedded in both the Content-Security-Policy: frame-ancestors header and in the HTML response body. As a result, potential attackers can exploit this vulnerability to perform malicious actions such as injecting scripts into the affected application. Users are advised to upgrade to version 26.05, where this issue has been addressed.

Affected Version(s)

goobi-viewer-core >= 25.08, < 26.05

References

https://github.com/intranda/goobi-viewer-core/security/ad...
x_refsource_CONFIRM
https://github.com/intranda/goobi-viewer-core/commit/0e48...
x_refsource_MISC
https://github.com/intranda/goobi-viewer-core/releases/ta...
x_refsource_MISC

CVSS V3.1

Score:
9.3
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
Required
Scope:
Changed

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.