What is GHSA-v5xx-f9gc-j856?

GHSA-v5xx-f9gc-j856 is a security advisory published by GitHub Security Advisories with Medium severity. An origin validation error vulnerability in Synology Active Backup for Business Agent before 3.1...

Which CVE IDs does GHSA-v5xx-f9gc-j856 cover?

GHSA-v5xx-f9gc-j856 covers the following CVE IDs: CVE-2025-66592. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of GHSA-v5xx-f9gc-j856?

GHSA-v5xx-f9gc-j856 has a CVSS v3 base score of 6.1, published by GitHub Security Advisories.

GHSA-v5xx-f9gc-j856MediumCVSS 6.1

An origin validation error vulnerability in Synology Active Backup for Business Agent before 3.1...

Vendor

GitHub Security Advisories

Published

May 27, 2026

Last Modified

May 27, 2026

🔗 CVE IDs covered (1)

CVE-2025-66592 →

📋 Description

An origin validation error vulnerability in Synology Active Backup for Business Agent before 3.1.0-4967 allows local users to write arbitrary files with restricted content during installation.

🔗 References (3)

https://nvd.nist.gov/vuln/detail/CVE-2025-66592
https://www.synology.com/en-global/security/advisory/Synology_SA_25_16
https://github.com/advisories/GHSA-v5xx-f9gc-j856