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CVE-2019-19336

21
FAUCET Score

CVE-2019-19336 is a cross-site scripting (XSS) vulnerability in the oVirt-engine's OAuth authorization endpoint, affecting oVirt Engine and Red Hat Virtualization versions prior to 4.3.8. This flaw allows an unauthenticated attacker to inject malicious scripts into a user's oVirt session by crafting a specially designed URL, due to improper escaping of URL parameters in the HTML response. Rated as MEDIUM severity (CVSS 6.1), the attack requires user interaction but can lead to information disclosure and integrity compromise. There is no evidence of active exploitation, public exploit code, or significant community discussion for this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
< 4.3.8CPE matchmatch criteria
cpe:2.3:a:ovirt:ovirt-engine:*:*:*:*:*:*:*:*
4.3CPE matchmatch criteria
cpe:2.3:a:redhat:virtualization:4.3:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

5.4MEDIUM

CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
NONE
Exploitability Score
2.8
Impact Score
2.5
CvssVersion
3.0

Exploit Intelligence

EPSS Score
0.94%
Probability of exploitation in next 30 days
EPSS Percentile
57.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0094 is in the 69th percentile among its peer group of 26,234 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (10)

redhatpatch availablevia redhat_api
Product: Red Hat Virtualization Engine 4.3Fixed in: org.ovirt.engine-root-0:4.3.8.2-4
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Virtualization Engine 4.3Fixed in: ovirt-engine-dwh-0:4.3.8-1.el7ev
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Virtualization Engine 4.3Fixed in: ovirt-engine-metrics-0:1.3.6.2-1.el7ev
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Virtualization Engine 4.3Fixed in: ovirt-fast-forward-upgrade-0:1.0.0-16.el7ev
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Virtualization Engine 4.3Fixed in: ovirt-imageio-common-0:1.5.3-0.el7ev
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Virtualization Engine 4.3Fixed in: ovirt-imageio-proxy-0:1.5.3-0.el7ev
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Virtualization Engine 4.3Fixed in: ovirt-web-ui-0:1.6.0-2.el7ev
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Virtualization Engine 4.3Fixed in: rhv-log-collector-analyzer-0:0.2.15-0.el7ev
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Virtualization Engine 4.3Fixed in: v2v-conversion-host-0:1.16.0-3.el7ev
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Virtualization Engine 4.4Fixed in: org.ovirt.engine-root-0:4.4.1.8-7
View patch

Vendor Advisories (1)

redhatCVE-2019-19336Moderate

ovirt-engine: response_type parameter allows reflected XSS

Jan 11, 2020

References

bugzilla.redhat.com / show_bug.cgi
Issue TrackingThird Party Advisory