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CVE-2025-56534 - Vulnerability Analysis

MediumCVSS: 6.1

Last Updated: April 29, 2026

OpenNebula - Stored XSS

Published: April 29, 2026Updated: April 29, 2026PoC AvailableRemote Exploitable

Overview

OpenNebula v6.10.0.1 contains a stored XSS vulnerability caused by improper sanitization in the custom authenticator driver, letting attackers execute arbitrary web scripts or HTML via crafted payloads.

Severity & Score

Severity: Medium

CVSS Score: 6.1

Impact

Attackers can execute arbitrary scripts in users' browsers, potentially stealing session data or performing actions on behalf of users.

Mitigation

Update to the latest version of OpenNebula.

References

https://github.com/MarkArtamonov/OpenNebula-CVE-2025-56534
https://opennebula.io/opennebula-7/

Related Resources

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Details

CVE ID: CVE-2025-56534
Severity: Medium
CVSS Score: 6.1
Type: stored_xss
Status: new

CWE

CWE-79

CVSS Metrics

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N