What is CVE-2021-21377?

CVE-2021-21377 is a medium-severity vulnerability in Ome Omero-web, classified under URL Redirection to Untrusted Site (Open Redirect). CVSS score: 4.8/10. Published 2021-03-23.

How severe is CVE-2021-21377?

Medium severity. CVSS v3 base score is 4.8 out of 10.

Open Redirect in Ome Omero-web

CVE-2021-21377

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, allowin…

Vulnerability class: Open Redirect

EPSS: 0.003 (54.8th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 4.8 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:H/I:N/A:N.

Affected products

Ome Omero-web — versions < 5.9.0

Weakness classification (CWE)

CWE-601 — URL Redirection to Untrusted Site (Open Redirect)

References

pypi.org/project/omero-web/ (x_refsource_MISC)
github.com/ome/omero-web/blob/master/CHANGELOG.md (x_refsource_MISC)
github.com/ome/omero-web/commit/952f8e5d28532fbb14fb665982211329d137908c (x_refsource_MISC)
github.com/ome/omero-web/security/advisories/GHSA-g4rf-pc26-6hmr (x_refsource_CONFIRM)
www.openmicroscopy.org/security/advisories/2021-SV2/ (x_refsource_MISC)

Frequently asked questions

What is CVE-2021-21377?: CVE-2021-21377 is a medium-severity vulnerability in Ome Omero-web, classified under URL Redirection to Untrusted Site (Open Redirect). CVSS score: 4.8/10. Published 2021-03-23.
How severe is CVE-2021-21377?: Medium severity. CVSS v3 base score is 4.8 out of 10.