Stored XSS via Pre-Login Notice Image Upload Serves Attacker HTML from Application Origin
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||
|---|---|---|---|---|---|---|---|---|---|
| Apereo Foundation | openEQUELLA | unaffected |
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| Vendor | Product | Versions | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Apereo Foundation | Openequella |
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Vendor Solution
Update to vendor recommended versions
No CVSS v3.1
No CVSS v3.0
No CVSS v2
This CVE is not in the KEV list.
Exploit prediction score: < 1% (0.315% probability within 30 days)
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Apereo Foundation
Apereo Foundation openequella |
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| Vendors & Products |
Apereo Foundation
Apereo Foundation openequella |
| Type | Values Removed | Values Added |
|---|---|---|
| Metrics |
ssvc
|
| Type | Values Removed | Values Added |
|---|---|---|
| Description | In openEQUELLA before 2026.1, the pre-login notice image upload endpoint (PUT /api/preloginnotice/image/{name}) does not validate the type of uploaded files and serves them with a Content-Type derived from the supplied filename. A user holding the EDIT_SYSTEM_SETTINGS permission can upload an HTML file that is then served as text/html from the openEQUELLA origin, resulting in stored cross-site scripting. Unauthenticated exploitation is possible where EDIT_SYSTEM_SETTINGS has been granted to the guest user or everyone. | |
| Title | Stored XSS via Pre-Login Notice Image Upload Serves Attacker HTML from Application Origin | |
| Weaknesses | CWE-434 | |
| References |
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| Metrics |
cvssV4_0
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