| CVE-2021-21377 | Date: (C)2021-03-24 (M)2023-12-22 |
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.
CVSS Score and Metrics +CVSS Score and Metrics -| CVSS V3 Severity: | CVSS V2 Severity: |
| CVSS Score : 5.4 | CVSS Score : 4.9 |
| Exploit Score: 2.3 | Exploit Score: 6.8 |
| Impact Score: 2.7 | Impact Score: 4.9 |
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| CVSS V3 Metrics: | CVSS V2 Metrics: |
| Attack Vector: NETWORK | Access Vector: NETWORK |
| Attack Complexity: LOW | Access Complexity: MEDIUM |
| Privileges Required: LOW | Authentication: SINGLE |
| User Interaction: REQUIRED | Confidentiality: PARTIAL |
| Scope: CHANGED | Integrity: PARTIAL |
| Confidentiality: LOW | Availability: NONE |
| Integrity: LOW | |
| Availability: NONE | |
| | |
