Rucio is a software framework that provides functionality to organize, manage, and access large volumes of scientific data using customizable policies. Versions prior to 35.8.3, 38.5.4, and 39.3.1 have a stored Cross-Site Scripting (XSS) vulnerability in the Custom Rules function of the WebUI where attacker-controlled input is persisted by the backend and later rendered in the WebUI without proper output encoding. This allows arbitrary JavaScript execution in the context of the WebUI for users who view affected pages, potentially enabling session token theft or unauthorized actions.
Versions 35.8.3, 38.5.4, and 39.3.1 fix the issue.
Attack Parameters
Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Privileges Required
Low
Basic privileges needed
User Interaction
Required
User action required
Impact Assessment
Confidentiality
High
Complete data leak
Integrity
High
Complete data modification
Availability
None
No disruption
CVSS Vector v3.1
Weakness Type (CWE)
References 5
https://cheatsheetseries.owasp.org/cheatsheets/Cross_Site_Scripting_Prevention_…
security-advisories@github.com
https://github.com/rucio/rucio/releases/tag/35.8.3
security-advisories@github.com
https://github.com/rucio/rucio/releases/tag/38.5.4
security-advisories@github.com
https://github.com/rucio/rucio/releases/tag/39.3.1
security-advisories@github.com
https://github.com/rucio/rucio/security/advisories/GHSA-rwj9-7j48-9f7q
security-advisories@github.com