OMERO-web Sensitive Data Exposure

published 2020-06-17 6y ago modified 2026-06-17 4mo ago also GHSA-vwxv-frj6-fhc9 , PYSEC-2020-244 , EUVD-2020-0120

cvss: 5.7; version 3.1, NVD
cisa kev: Not listed; not in CISA's catalog
epss: 0.8%; EPSS 0.8% chance of exploitation in 30 days, percentile 56%
public exploits: 0; none known

OMERO.web before 5.6.3 optionally allows sensitive data elements (e.g., a session key) to be passed as URL query parameters. If an attacker tricks a user into clicking a malicious link in OMERO.web, the information in the query parameters may be exposed in the Referer header seen by the target. Information in the URL path such as object IDs may also be exposed.

Patch / fix

fixed in 2

pypi omero-web 5.6.3
openmicroscopy omero.web 5.6.3

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Exploit prediction

0.80% chance of exploitation in the next 30 days, higher than 56% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by	version	score	vector
NVD	3.1	5.7	CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:N/A:N
NVD	2.0	3.5	AV:N/AC:M/Au:S/C:P/I:N/A:N
GitHub	3.1	5.7	CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:N/A:N

Affected packages

ecosystem	package	affected	fixed in
pypi	omero-web	<5.6.3	5.6.3

Classification

Weakness

CWE-200 Exposure of Sensitive Information to an Unauthorized Actor

References

openmicroscopy.org /security/advisories/2019-SV4/
vendor-advisory, advisory
nvd.nist.gov /vuln/detail/CVE-2020-7932
advisory
github.com /ome/omero-web
package
github.com /pypa/advisory-database/tree/main/vulns/omero-web/PYSEC-2020-244.yaml
web
openmicroscopy.org /security/advisories/2019-SV4
web
github.com /advisories/GHSA-vwxv-frj6-fhc9
advisory

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.