CVE-2026-66092 (GCVE-0-2026-66092)
Vulnerability from cvelistv5 – Published: 2026-10-29 01:39 – Updated: 2026-10-29 02:02
VLAI
EPSS
VEX
Title
Stored XSS in pre-login notice via reachable legacy logon route
Summary
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
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-29 01:50 UTC
CWE
- CWE-79 - Improper neutralization of input during web page generation ('cross-site scripting')
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/openequella/openEQUELLA/securi… | vendor-advisory |
| https://openequella.github.io/guides/ | product |
Impacted products
1 product
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| Apereo Foundation | openEQUELLA |
Affected:
2019.1 , < 2026.2
(custom)
|
guessed |
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Browse all ATT&CK techniques and the vulnerabilities related to each.
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