CVE-2026-66092

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

References

https://openequella.github.io/guides/

https://github.com/openequella/openEQUELLA/security/advisories/GHSA-9jhj-7h37-3j2c

https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-112568

Details

Source: Mitre, NVD

Risk Information

CVSS v2

CVSS v3

CVSS v4

EPSS