CVE-2021-21377
Medium
Description
OMERO.web is open source Django-based software for managing microscopy imaging. OMERO.web before version 5.9.0 supports redirection to a given URL after performing login or switching the group context. These URLs are not validated, allowing redirection to untrusted sites. OMERO.web 5.9.0 adds URL validation before redirecting. External URLs are not considered valid, unless specified in the omero.web.redirect_allowed_hosts setting.
SeverityMedium
CVSS4.8
Exploit probability—
ProductOpenmicroscopy Omero.web
PublishedMar 23, 2021
First seenMar 23, 2021
Weakness typeCWE-601Open redirect
How to fix
Update
- openmicroscopy omero.web5.9.0 or later
- omero-web5.9.0 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| openmicroscopy omero.web | v < 5.9.0 | 5.9.0 |
| omero-webPyPI | v < 5.9.0 | 5.9.0 |
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