In openEQUELLA before 2026.2, the pre-login notice is stored as HTML and rendered on the legacy logon page without encoding or sanitisation. A user holding the EDIT_SYSTEM_SETTINGS permission can set a notice containing an arbitrary script (PUT /api/preloginnotice), resulting in stored cross-site scripting on the login page. Unauthenticated exploitation is possible where EDIT_SYSTEM_SETTINGS has been granted to the guest user or Everyone

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Advisories

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Fixes

Solution

Update to vendor recommended versions


Workaround

No workaround given by the vendor.

History

Thu, 29 Oct 2026 02:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Thu, 29 Oct 2026 01:45:00 +0000

Type Values Removed Values Added
Description In openEQUELLA before 2026.2, the pre-login notice is stored as HTML and rendered on the legacy logon page without encoding or sanitisation. A user holding the EDIT_SYSTEM_SETTINGS permission can set a notice containing an arbitrary script (PUT /api/preloginnotice), resulting in stored cross-site scripting on the login page. Unauthenticated exploitation is possible where EDIT_SYSTEM_SETTINGS has been granted to the guest user or Everyone
Title Stored XSS in pre-login notice via reachable legacy logon route
Weaknesses CWE-79
References
Metrics cvssV4_0

{'score': 4.8, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: MON-CSIRT

Published:

Updated: 2026-10-29T02:02:12.981Z

Reserved: 2026-07-24T02:22:10.431Z

Link: CVE-2026-66092

cve-icon Vulnrichment

Updated: 2026-10-29T01:53:41.875Z

cve-icon NVD

Status : Received

Published: 2026-10-29T02:16:53.057

Modified: 2026-10-29T02:16:53.057

Link: CVE-2026-66092

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-10-29T02:30:07Z

Weaknesses